plant serpin family protein belonging to the functionally diverse SERine Proteinase INhibitor (serpin) family, which is characterized by conformational polymorphism
serpin family P, plant serpins; Plant SERine Proteinase INhibitors (serpins) are potent ...
8-389
0e+00
serpin family P, plant serpins; Plant SERine Proteinase INhibitors (serpins) are potent inhibitors of a range of mammalian serine proteases in vitro, and at least seven serpin genes are expressed in Arabidopsis. Serpins from plants display a wide range of functions including protection of storage protein degradation by exogenous proteases and seed survival within the herbivore digestive tract. Comparison between Arabidopsis AtSerpin1 and other serpins reveals several distinguishing features including a plant-specific insertion between s2B and s3B, with a plant-specific motif YXXGXDXRXF and the presence of a beta-bulge in strand s2C. The conserved Asp-230 and Arg-232 in the motif form a network of hydrogen bonds stabilize a loop region, which is otherwise disordered in many other serpin structures. AtSerpin1 is targeted to the secretory pathway and was shown to interact with cysteine protease RD21 (RESPONSIVE TO DESICCATION-21). RD21 accepts peptides and ligates them to the N termini of acceptor proteins so it has been proposed that AtSerpin1 functions to curb this activity. This subgroup corresponds to clade P of the serpin superfamily. In general, serpins exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
:
Pssm-ID: 381001 [Multi-domain] Cd Length: 382 Bit Score: 680.01 E-value: 0e+00
serpin family P, plant serpins; Plant SERine Proteinase INhibitors (serpins) are potent ...
8-389
0e+00
serpin family P, plant serpins; Plant SERine Proteinase INhibitors (serpins) are potent inhibitors of a range of mammalian serine proteases in vitro, and at least seven serpin genes are expressed in Arabidopsis. Serpins from plants display a wide range of functions including protection of storage protein degradation by exogenous proteases and seed survival within the herbivore digestive tract. Comparison between Arabidopsis AtSerpin1 and other serpins reveals several distinguishing features including a plant-specific insertion between s2B and s3B, with a plant-specific motif YXXGXDXRXF and the presence of a beta-bulge in strand s2C. The conserved Asp-230 and Arg-232 in the motif form a network of hydrogen bonds stabilize a loop region, which is otherwise disordered in many other serpin structures. AtSerpin1 is targeted to the secretory pathway and was shown to interact with cysteine protease RD21 (RESPONSIVE TO DESICCATION-21). RD21 accepts peptides and ligates them to the N termini of acceptor proteins so it has been proposed that AtSerpin1 functions to curb this activity. This subgroup corresponds to clade P of the serpin superfamily. In general, serpins exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381001 [Multi-domain] Cd Length: 382 Bit Score: 680.01 E-value: 0e+00
serpin family P, plant serpins; Plant SERine Proteinase INhibitors (serpins) are potent ...
8-389
0e+00
serpin family P, plant serpins; Plant SERine Proteinase INhibitors (serpins) are potent inhibitors of a range of mammalian serine proteases in vitro, and at least seven serpin genes are expressed in Arabidopsis. Serpins from plants display a wide range of functions including protection of storage protein degradation by exogenous proteases and seed survival within the herbivore digestive tract. Comparison between Arabidopsis AtSerpin1 and other serpins reveals several distinguishing features including a plant-specific insertion between s2B and s3B, with a plant-specific motif YXXGXDXRXF and the presence of a beta-bulge in strand s2C. The conserved Asp-230 and Arg-232 in the motif form a network of hydrogen bonds stabilize a loop region, which is otherwise disordered in many other serpin structures. AtSerpin1 is targeted to the secretory pathway and was shown to interact with cysteine protease RD21 (RESPONSIVE TO DESICCATION-21). RD21 accepts peptides and ligates them to the N termini of acceptor proteins so it has been proposed that AtSerpin1 functions to curb this activity. This subgroup corresponds to clade P of the serpin superfamily. In general, serpins exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381001 [Multi-domain] Cd Length: 382 Bit Score: 680.01 E-value: 0e+00
SERine Proteinase INhibitors (serpin) family; SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381000 [Multi-domain] Cd Length: 365 Bit Score: 338.10 E-value: 2.09e-114
serpin thermopin and similar proteins; Thermopin, the serpin from Thermobifida fusca, ...
26-388
4.30e-108
serpin thermopin and similar proteins; Thermopin, the serpin from Thermobifida fusca, functions as an irreversible proteinase inhibitor with resistance to polymerization at high temperatures. The crystal structure of the cleaved thermopin was found to adopt the canonical serpin fold, supporting its inclusion as a classical inhibitory member of the serpin superfamily. A detailed structural comparison revealed unique features, including charge-stabilizing interactions, a deleted element of secondary structure (the G helix), and a C-terminal "tail" that interacts with the top of the A beta sheet and plays an important role in the folding/unfolding of the molecule. These unique features provide structural and biophysical evidence as to how this unusual serpin member has adapted to remain functional in an extreme environment. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381056 [Multi-domain] Cd Length: 366 Bit Score: 321.77 E-value: 4.30e-108
serpin miropin and similar proteins; Miropin, the serpin from Tannerella forsythia, is thought ...
10-385
9.09e-96
serpin miropin and similar proteins; Miropin, the serpin from Tannerella forsythia, is thought to contribute to the virulence of periodontal pathogens by inhibiting neutrophil serine proteases. Miropin broadly inhibits serine endopeptidases (SEPs) including trypsin, neutrophil elastase, pancreatic elastase, subtilisin, and cathepsin G and cysteine endopeptidases (CEPs) including papain, calpain-like peptidase Tpr, and gingipain K through various reactive-site bonds. This is achieved by offering several target bonds of the RCL for cleavage within a bait region, instead of a single RSB as found in canonical serpins. In addition, promiscuous inhibition is facilitated by the capacity to insert strands deviating from the canonical length into the central sheet A, while keeping the prey peptidase bound and inactivated. The structural adaptation of miropin to provide a relaxed inhibitory specificity, which allows for formation of inhibitory complexes using different sites, is unique among serpins. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381054 [Multi-domain] Cd Length: 365 Bit Score: 290.54 E-value: 9.09e-96
serpin tengpin and similar proteins; Tengpin is an unusual prokaryotic serpin from the ...
5-387
2.21e-95
serpin tengpin and similar proteins; Tengpin is an unusual prokaryotic serpin from the extremophile Thermoanaerobacter tengcongensis. In addition to the serpin domain, tengpin contains an N-terminal region that functions to trap the serpin domain in the native metastable state and prevent the spontaneous transition to the latent conformation. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381055 [Multi-domain] Cd Length: 367 Bit Score: 289.46 E-value: 2.21e-95
serpins similar to Drosophila melanogaster Serpin 42Da; This subfamily is composed mainly of ...
11-385
4.21e-89
serpins similar to Drosophila melanogaster Serpin 42Da; This subfamily is composed mainly of insect serpins, including Drosophila melanogaster serpin 42Da. Serpins in insects function within development, wound healing and immunity. Serpin 42Da, previously serpin 4, is a serine protease inhibitor that is capable of remarkable functional diversity through the alternative splicing of four different reactive center loop exons. Insect serpins from stink bug, alfalfa leafcutting bee, red flour beetle, house fly, and brown planthopper are also included in this subfamily. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381065 [Multi-domain] Cd Length: 361 Bit Score: 273.24 E-value: 4.21e-89
serpin family J, Ixodes ricinus serpin-2 (IRS-2); The serpin family J clade contains serpins ...
11-389
9.86e-89
serpin family J, Ixodes ricinus serpin-2 (IRS-2); The serpin family J clade contains serpins from the Chelicerates. This model includes serpins from the Japanese horseshoe crab, mites, ticks, and spiders. The Limulus intracellular coagulation inhibitor, designated LICI, was isolated from hemocytes of the Japanese horseshoe crab. It blocks the amidolytic activities of Limulus lipopolysaccharide-sensitive serine protease, factor C and also inhibits human alpha-thrombin, rat salivary kallikrein, bovine plasmin, and trypsin but not Limulus clotting enzyme, Limulus factor B, bovine factor Xa, human factor XIa, human tissue plasminogen activator, human urokinase, chymotrypsin, elastase, and papain. Glycosaminoglycans such as heparin and heparan sulfate had no effect on the inhibitory activity. The castor bean tick, Ixodes ricinus serpin-2 (IRS-2) whose structure has been solved, unlike that of the LICI, is found in the saliva of the tick and primarily targets 2 proinflammatory serine proteases: cathepsin G and mast cell chymase, and in higher molar excess, thrombin. It also blocks cathepsin G- and thrombin-induced platelet aggregation. Thus it has a dual role and can interfere with both inflammation and wound healing during tick feeding. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381043 [Multi-domain] Cd Length: 372 Bit Score: 272.50 E-value: 9.86e-89
serpin family K, insect Serpin-2 and similar proteins; Serpin-2 (SRPN2) is a negative ...
16-389
1.92e-81
serpin family K, insect Serpin-2 and similar proteins; Serpin-2 (SRPN2) is a negative regulator of the melanization response in the malaria vector Anopheles gambiae. SRPN2 irreversibly inhibits clip domain serine proteinase 9 (CLIPB9), which functions in a serine proteinase cascade ending in the activation of prophenoloxidase and melanization. Silencing of SRPN2 results in spontaneous melanization and decreased life span of the mosquito and is a promising target for vector control. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381044 [Multi-domain] Cd Length: 376 Bit Score: 254.05 E-value: 1.92e-81
serpin B family, ov-serpins; The clade B of the serpin superfamily corresponds to the ...
26-386
3.30e-75
serpin B family, ov-serpins; The clade B of the serpin superfamily corresponds to the ovalbumin family of serpins (ov-serpins), a family of closely related proteins, whose members can be secreted (ovalbumin), cytosolic (leukocyte elastase inhibitor, LEI), or targeted to both compartments (plasminogen activator inhibitor 2, PAI-2). Family members are also characterized by N- and C-terminal extensions, the absence of a signal peptide, and a Ser rather than an Asn residue at the penultimate position. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381072 [Multi-domain] Cd Length: 376 Bit Score: 237.85 E-value: 3.30e-75
serpin family proteins from bacteria and crustaceans; This group includes a variety of serpin ...
27-389
1.13e-73
serpin family proteins from bacteria and crustaceans; This group includes a variety of serpin family proteins from various bacteria and crustaceans including sea louse and salmon louse. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381058 [Multi-domain] Cd Length: 370 Bit Score: 233.79 E-value: 1.13e-73
serpin family proteins from platyhelminthes; This group includes a variety of serpins from ...
29-389
1.21e-73
serpin family proteins from platyhelminthes; This group includes a variety of serpins from platyhelminthes (lung fluke, tapeworm, flatworm). SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381067 [Multi-domain] Cd Length: 380 Bit Score: 234.12 E-value: 1.21e-73
insect serpins similar to Drosophila melanogaster Serpin 42Dd; Serpins in insects function ...
11-389
4.12e-73
insect serpins similar to Drosophila melanogaster Serpin 42Dd; Serpins in insects function within development, wound healing and immunity. Drosophila melanogaster Serpin 42Dd, also called serpin 1 (Spn1), regulates Toll-mediated immune responses, functioning as a repressor of Toll activation upon fungal infection. Insect serpins from house flies, fruit flies, and stable flies are included in this subfamily. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381070 [Multi-domain] Cd Length: 366 Bit Score: 232.10 E-value: 4.12e-73
serpin family B member 1 (serpin B1), leukocyte elastase inhibitor (LEI); Leukocyte elastase ...
20-389
6.27e-72
serpin family B member 1 (serpin B1), leukocyte elastase inhibitor (LEI); Leukocyte elastase inhibitor (LEI , also known as proteinase inhibitor 2/PI2, monocyte neutrophil elastase inhibitor/MNEI, EI, or ELANH2) is a member of the clade B serpins or ov-serpins (ovalbumin related serpins) that in humans is encoded by the SERPINB1 gene. Human SERPINB1 is a potent intracellular inhibitor for granzyme H (GzmH) which is constitutively expressed in NK cells and induces target cell death. GzmH cleaves SERPINB1 at Phe343 in the RCL to mediate suicide inhibition. Equine leukocyte elastase inhibitor (HLEI) in contrast to other serpins contains no carbohydrate and has a blocked amino terminus. HLEI is a thymosin beta4-binding protein suggesting a physiological role for cytoplasmic elastase inhibitors in the thymosin B4-regulated rearrangement of the cytoskeleton of leukocytes. HLEI has been proposed to be involved with the control of intracellular protein turnover or the control of elastinolytic activity during inflammation. Ov-serpins are a family of closely related proteins, whose members can be secreted (ovalbumin), cytosolic (leukocyte elastase inhibitor, LEI), or targeted to both compartments (plasminogen activator inhibitor 2, PAI-2). It also characterized by N- and C-terminal extensions, the absence of a signal peptide, and a Ser rather than an Asn residue at the penultimate position. The ov-serpins corresponds to clade B of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381028 [Multi-domain] Cd Length: 379 Bit Score: 229.55 E-value: 6.27e-72
serpin family L, serpin family proteins from nematodes; The role of nematode serpins remains ...
26-385
1.13e-68
serpin family L, serpin family proteins from nematodes; The role of nematode serpins remains largely elusive. The only nematode serpin for which experimental evidence indicates an evasive function is Brugia malayi SPN-2 which specifically inhibits two human neutrophil-derived serine proteinases, cathepsin G and elastase. Less is known of Brugia malayi SPN-1, which is present at all stages of the parasite life cycle and could exist to inhibit a cognate proteinase endogenous to the parasite. Schistosoma serpins are hypothesized to play a role in both the physiological control of elastase within the schistosomes, and protection of the parasite from activated neutrophils during inflammation. Caenorhabditis elegans serpins are thought to regulate endogenous serine proteinases as well as inhibit proteinases produced by pathogenic microorganisms. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381047 [Multi-domain] Cd Length: 357 Bit Score: 220.61 E-value: 1.13e-68
insect serpins similar to Bombyx mori Serpin-11; Serpins in insects function within ...
26-389
7.01e-67
insect serpins similar to Bombyx mori Serpin-11; Serpins in insects function within development, wound healing and immunity. The specific function of Bombyx mori serpin-11 (SPN19) is unknown. Insect serpins from sawfly, mealworm, riceborer, moth, silkworm, bollworm are included in this subfamily. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381064 [Multi-domain] Cd Length: 366 Bit Score: 216.37 E-value: 7.01e-67
serpin family proteins from crustaceans, chelicerates, and insects; This group includes a ...
14-389
1.98e-66
serpin family proteins from crustaceans, chelicerates, and insects; This group includes a variety of serpins from crustaceans (sea louse, Chinese mitten crab, signal crayfish, red king crab, Asian tiger shrimp), chelicerates (Atlantic horseshoe crab, common house spider), and insects (Asian tiger mosquito, caddisfly, pea aphid, bed bug, fruit fly, Australian sheep blowfly, tobacco hornworm, alfalfa leafcutting bee). SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381059 [Multi-domain] Cd Length: 374 Bit Score: 215.12 E-value: 1.98e-66
Manduca sexta Serpin 1K and similar proteins; Serpin 1K is a chymotrypsin inhibitor and is 1 ...
14-384
2.48e-66
Manduca sexta Serpin 1K and similar proteins; Serpin 1K is a chymotrypsin inhibitor and is 1 of 12 serpins found in the hemolymph of the hornworm moth Manduca sexta. Serpins may be involved in the immune response in insect hemolymph. All of these serpins are encoded by the same gene, and the message for each is produced by alternative splicing of the final exon. This exon encodes the RCL and two strands of sheet B. Serpin 1K has a canonical structure at the reactive center, as is observed in a1-antitrypsin, whereas hinge residues (P17-P13) adopt the position and conformation observed in ovalbumin. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381045 [Multi-domain] Cd Length: 368 Bit Score: 214.80 E-value: 2.48e-66
serpin family proteins; This group includes a variety of serpins in three domains of life ...
28-386
6.17e-64
serpin family proteins; This group includes a variety of serpins in three domains of life eukaryotes, bacteria, and archaea. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381057 [Multi-domain] Cd Length: 364 Bit Score: 208.37 E-value: 6.17e-64
serpin family I member 2, pancpin; Pancpin (also called proteinase inhibitor 14/PI14 or ...
20-389
4.07e-59
serpin family I member 2, pancpin; Pancpin (also called proteinase inhibitor 14/PI14 or myoepithelium-derived serine protease inhibitor/MEPI ) is an inhibitory member of the serpin superfamily. It is downregulated in pancreatic and breast cancer, and is associated with acinar cell apoptosis and pancreatic insufficiency when absent in mice. Pancpin was found to inhibit pancreatic chymotrypsin and elastase. It is thought that pancpin protects pancreatic cells from the consequences of premature activation of their respective zymogens. This subgroup belongs to clade I of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381042 [Multi-domain] Cd Length: 371 Bit Score: 196.22 E-value: 4.07e-59
insect serpins similar to Tenebrio molitor serpin 48; Serpins in insects function within ...
26-385
5.09e-59
insect serpins similar to Tenebrio molitor serpin 48; Serpins in insects function within development, wound healing and immunity. Tenebrio molitor serpin 48 (SPN48) is highly specific for Spatzle-processing enzyme, an essential component in insect innate immunity. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381071 [Multi-domain] Cd Length: 361 Bit Score: 195.57 E-value: 5.09e-59
serpin family A; The clade A of the serpin superfamily includes the classical serine ...
16-389
5.48e-59
serpin family A; The clade A of the serpin superfamily includes the classical serine proteinase inhibitors, alpha-1-antitrypsin and alpha-1-antichymotrypsin, protein C inhibitor, kallistatin, and non-inhibitory serpins, like corticosteroid and thyroxin binding globulins. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381073 [Multi-domain] Cd Length: 363 Bit Score: 195.51 E-value: 5.48e-59
serpin family proteins from mollusks; This group includes a variety of serpins from mollusks ...
7-384
1.54e-57
serpin family proteins from mollusks; This group includes a variety of serpins from mollusks (freshwater snail, sea slug, and disk abalone). SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381066 [Multi-domain] Cd Length: 374 Bit Score: 192.17 E-value: 1.54e-57
serpin family E member 1, plasminogen activator inhibitor-1; Plasminogen activator inhibitor-1 ...
26-389
1.65e-57
serpin family E member 1, plasminogen activator inhibitor-1; Plasminogen activator inhibitor-1 (PAI-1/PLANH1, also called endothelial PAI) is the primary, fast-acting inhibitor of plasminogen activators. It is often bound to vitronectin, an abundant component of the extracellular matrix in many tissues. PAI1 deficiency is a rare bleeding disorder that causes excessive or prolonged bleeding due to blood clots being broken down too early. PAI-1 is a member of the serpin superfamily and belongs to clade E. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381007 [Multi-domain] Cd Length: 374 Bit Score: 192.26 E-value: 1.65e-57
serpin family B, Myeloid and Erythroid Nuclear Termination stage-specific protein (MENT) and ...
11-389
3.27e-56
serpin family B, Myeloid and Erythroid Nuclear Termination stage-specific protein (MENT) and similar proteins; Gallus gallus Myeloid and Erythroid Nuclear Termination stage-specific protein (MENT) is a nonhistone heterochromatin-associated serpin that is an effective inhibitor of cathepsin L as well as the papain-like cysteine proteases cathepsins K, L, and V in vitro. It's reactive center loop, which is essential for chromatin bridging, is able to mediate formation of a loop-sheet oligomer. It also contains an M-loop which contains two critical functional motifs: a classical nuclear localization signal (NLS) that is required for nuclear import and an AT-hook motif that is involved in chromatin and DNA binding. MENT belongs to the clade B of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381014 [Multi-domain] Cd Length: 406 Bit Score: 189.82 E-value: 3.27e-56
serpin family C member 1, antithrombin III; Antithrombin III (AT3/ATIII) is a non-vitamin ...
12-389
8.49e-55
serpin family C member 1, antithrombin III; Antithrombin III (AT3/ATIII) is a non-vitamin K-dependent serine protease that inhibits coagulation by neutralizing the enzymatic activity of thrombin (factors IIa, IXa, Xa). It is the most important anticoagulant molecule in mammalian circulation systems, controlled by its interaction with the cofactor, heparin, which accelerates its interaction with target proteases. This subgroup corresponds to clade C of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381002 [Multi-domain] Cd Length: 395 Bit Score: 185.76 E-value: 8.49e-55
serpin family B member 10, bomapin; Bomapin (also called proteinase inhibitor 10/PI10) is a ...
11-389
8.83e-54
serpin family B member 10, bomapin; Bomapin (also called proteinase inhibitor 10/PI10) is a hematopoietic- and myeloid leukaemia-specific protease inhibitor which is thought to augment proliferation or apoptosis of leukemia cells, depending on growth factor availability. Bomapin is expressed only in bone marrow, leukocytes of patients with myeloid leukaemia that correspond to myeloid progenitors, and promyelocytic leukaemia cell lines (HL60, THP1, and AML-193), but it is not present in terminally differentiated leukocytes. The ovalbumin family of serpins (ov-serpins) is a family of closely related proteins, whose members can be secreted (ovalbumin), cytosolic (leukocyte elastase inhibitor, LEI), or targeted to both compartments (plasminogen activator inhibitor 2, PAI-2). It also characterized by N- and C-terminal extensions, the absence of a signal peptide, and a Ser rather than an Asn residue at the penultimate position. The ov-serpins corresponds to clade B of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381035 [Multi-domain] Cd Length: 397 Bit Score: 183.14 E-value: 8.83e-54
serpin family B members 3 and 4, squamous cell carcinoma antigens 1 and 2; Squamous cell ...
26-389
3.86e-53
serpin family B members 3 and 4, squamous cell carcinoma antigens 1 and 2; Squamous cell carcinoma antigen 1 (SCCA1, also called HsT1196 or protein T4-A) and squamous cell carcinoma antigen 2 (SCCA2, also called PI11 or leupin), which are encoded by the SERPINB3 and SERPINB4 genes, respectively, are members of the serpin family of serine protease inhibitors. SCCA1 is a so called cross-class serpin, inhibiting cysteine proteinases such as cathepsin S, K, L, and papain. SCCA2 inhibits chymotrypsin-like serine proteases including chymase, cathepsin G, and Der p1. Elevated levels of SCCA1 and SCCA2 have been detected in chronic inflammatory conditions involving the skin, especially atopic dermatitis (AD)and psoriasis, as well as in respiratory inflammatory diseases such as asthma, chronic obstructive pulmonary disease (COPD), and tuberculosis. They are both normally co-expressed in squamous epithelial cells of tongue, esophagus, tonsils, epidermal hair follicles, lung and uterus, and become highly up-regulated in squamous carcinomas of these organs. Diseases associated with SERPINB3 include anal cancer and cervical squamous cell carcinoma, whereas SERPINB4 include squamous cell carcinoma and chromosome 18Q deletion syndrome. The ovalbumin family of serpins (ov-serpins) is a family of closely related proteins, whose members can be secreted (ovalbumin), cytosolic (leukocyte elastase inhibitor, LEI), or targeted to both compartments (plasminogen activator inhibitor 2, PAI-2). It also characterized by N- and C-terminal extensions, the absence of a signal peptide, and a Ser rather than an Asn residue at the penultimate position. The ov-serpins corresponds to clade B of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381030 [Multi-domain] Cd Length: 390 Bit Score: 181.00 E-value: 3.86e-53
insect serpins similar to Drosophila melanogaster Serpin 77Ba; Serpins in insects function ...
11-389
5.20e-53
insect serpins similar to Drosophila melanogaster Serpin 77Ba; Serpins in insects function within development, wound healing and immunity. Drosophila melanogaster Serpin 77Ba plays an essential role in regulating the tracheal melanization immune response to bacterial and fungal infection. Insect serpins from pine beetle, diamondback moth, red flour beetle, mosquito, silkworm, and fruit fly are included in this subfamily. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381062 [Multi-domain] Cd Length: 376 Bit Score: 180.43 E-value: 5.20e-53
serpin family I member 1, neuroserpin; Neuroserpin (NSP, also called proteinase inhibitor 12 ...
11-386
1.04e-51
serpin family I member 1, neuroserpin; Neuroserpin (NSP, also called proteinase inhibitor 12/PI-12) is an inhibitory member of the serpin family that reacts preferentially with tissue-type plasminogen activator (tPA). It is located in neurons in regions of the brain where tPA is also found, suggesting that neuroserpin is the selective inhibitor of tPA in the central nervous system (CNS). This subgroup corresponds to clade I of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381005 [Multi-domain] Cd Length: 372 Bit Score: 176.93 E-value: 1.04e-51
serpin family B member 8, cytoplasmic antiproteinase 2; Cytoplasmic antiproteinase 2 (CAP-2 or ...
30-389
2.44e-51
serpin family B member 8, cytoplasmic antiproteinase 2; Cytoplasmic antiproteinase 2 (CAP-2 or peptidase inhibitor 8/PI-8) is a member of the ovalbumin family of serpins (ov-serpins). Serpin B8 is produced by platelets and can bind to and inhibit the function of furin, a serine protease involved in platelet functions. In addition, this protein has been found to enhance the mechanical stability of cell-cell adhesion in the skin, and defects in this gene have been associated with an autosomal-recessive form of exfoliative ichthyosis. Diseases associated with SERPINB8 include Peeling Skin Syndrome 5 and Exfoliative Ichthyosis. Among its related pathways are Response to elevated platelet cytosolic Ca2+ and CFTR-dependent regulation of ion channels in Airway Epithelium (norm and CF). The ov-serpins are a family of closely related proteins, whose members can be secreted (ovalbumin), cytosolic (leukocyte elastase inhibitor, LEI), or targeted to both compartments (plasminogen activator inhibitor 2, PAI-2). It also characterized by N- and C-terminal extensions, the absence of a signal peptide, and a Ser rather than an Asn residue at the penultimate position. The ov-serpins corresponds to clade B of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381033 [Multi-domain] Cd Length: 374 Bit Score: 175.97 E-value: 2.44e-51
serpin family B member 2, plasminogen activator inhibitor 2; Plasminogen activator inhibitor-2 ...
5-389
1.05e-50
serpin family B member 2, plasminogen activator inhibitor 2; Plasminogen activator inhibitor-2 (PAI-2/PLANH2, also called placental PAI, monocyte arg-serpin, or urokinase inhibitor) is a serine protease inhibitor that belongs to the ovalbumin family of serpins (ov-serpins). It is an effective inhibitor of urinary plasminogen activator (urokinase or uPA) and is involved in cell differentiation, tissue growth and regeneration. Ov-serpins are a family of closely related proteins, whose members can be secreted (ovalbumin), cytosolic (leukocyte elastase inhibitor, LEI), or targeted to both compartments (plasminogen activator inhibitor 2, PAI-2). It also characterized by N- and C-terminal extensions, the absence of a signal peptide, and a Ser rather than an Asn residue at the penultimate position. The ov-serpins corresponds to clade B of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381029 [Multi-domain] Cd Length: 414 Bit Score: 175.56 E-value: 1.05e-50
serpin family A member 10, protein Z-dependent protease inhibitor; Protein Z-dependent ...
30-389
1.65e-50
serpin family A member 10, protein Z-dependent protease inhibitor; Protein Z-dependent protease inhibitor (ZPI) is a member of the serpin superfamily of proteinase inhibitors (clade A10). ZPI inhibits coagulation factor Xa, dependent on protein Z (PZ), a vitamin K-dependent plasma protein. ZPI also inhibits factor XIa in a process that does not require PZ. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381011 [Multi-domain] Cd Length: 380 Bit Score: 173.98 E-value: 1.65e-50
serpin family A member, alpha-1-antitrypsin and similar proteins; This group contains proteins ...
16-389
4.21e-49
serpin family A member, alpha-1-antitrypsin and similar proteins; This group contains proteins similar to alpha-1-antitrypsin (also called A1AT, A1A, AAT, alpha1-proteinase inhibitor/A1PI, alpha1-antiproteinase/A1AP, and serum trypsin inhibitor), a protease inhibitor that belongs to the serpin superfamily. It is encoded in humans by the SERPINA1 gene. When the blood contains inadequate amounts of A1AT or functionally defective A1AT (such as in alpha-1 antitrypsin deficiency), neutrophil elastase is excessively free to break down elastin, degrading the elasticity of the lungs, which results in respiratory complications, such as chronic obstructive pulmonary disease. Normally, A1AT leaves its site of origin, the liver, and joins the systemic circulation; defective A1AT can fail to do so, building up in the liver, which results in cirrhosis. This group belongs to the clade A of the serpin superfamily, which includes the classical serine proteinase inhibitors, alpha-1-antitrypsin and alpha-1-antichymotrypsin, protein C inhibitor, kallistatin, and non-inhibitory serpins, like corticosteroid and thyroxin binding globulins. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381017 [Multi-domain] Cd Length: 367 Bit Score: 169.88 E-value: 4.21e-49
serpin family D member 1, Heparin cofactor II; Heparin cofactor II (HCF2/HC-II, also called ...
16-390
5.50e-49
serpin family D member 1, Heparin cofactor II; Heparin cofactor II (HCF2/HC-II, also called protease inhibitor leuserpin-2/hLS2) is a protein encoded by the SERPIND1 gene that inhibits thrombin, the final protease of the coagulation cascade. HCII is allosterically activated by binding to cell surface glycosaminoglycans (GAGs). The specificity of HCII for thrombin is conferred by a highly acidic hirudin-like N-terminal tail, which becomes available after GAG binding for interaction with the anion-binding exosite I of thrombin. HCII deficiency can lead to increased thrombin generation and a hypercoagulable state. This subgroup corresponds to clade D of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381004 [Multi-domain] Cd Length: 449 Bit Score: 171.44 E-value: 5.50e-49
insect serpins similar to Drosophila melanogaster Serpin-28D; Serpins in insects function ...
16-389
2.01e-48
insect serpins similar to Drosophila melanogaster Serpin-28D; Serpins in insects function within development, wound healing and immunity. Drosophila melanogaster Serpin-28D is required for pupal viability and plays an essential role in regulating melanization. Insect serpins from mosquitoes, Mediterranean fruit fly, fruit fly, and blowfly are included in this subfamily. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381061 [Multi-domain] Cd Length: 395 Bit Score: 168.62 E-value: 2.01e-48
serpin family B member 6, cytoplasmic antiproteinase; Cytoplasmic antiproteinase (CAP, also ...
30-389
5.40e-48
serpin family B member 6, cytoplasmic antiproteinase; Cytoplasmic antiproteinase (CAP, also called proteinase inhibitor 6/PI6 or placental thrombin inhibitor/PTI) is thought to be involved in the regulation of serine proteinases present in the brain or extravasated from the blood. It may play an important role in the inner ear in the protection against leakage of lysosomal content during stress; loss of this protection results in cell death and sensorineural hearing loss. It is an inhibitor of cathepsin G, kallikrein-8 and thrombin. The ovalbumin family of serpins (ov-serpins) is a family of closely related proteins, whose members can be secreted (ovalbumin), cytosolic (leukocyte elastase inhibitor, LEI), or targeted to both compartments (plasminogen activator inhibitor 2, PAI-2). It also characterized by N- and C-terminal extensions, the absence of a signal peptide, and a Ser rather than an Asn residue at the penultimate position. The ov-serpins corresponds to clade B of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381031 [Multi-domain] Cd Length: 378 Bit Score: 167.39 E-value: 5.40e-48
serpin family A member, alpha-1-antitrypsin and similar serpin proteins in birds and reptiles; ...
20-389
5.57e-48
serpin family A member, alpha-1-antitrypsin and similar serpin proteins in birds and reptiles; The alpha-1-antitrypsin family has a variety of different members of sauropsida belonging to the clade A of the serpin superfamily. This branch includes members from zebra finch, green anole, king cobra, gekko, crocodile, and central bearded dragon. Alpha-1-antitrypsin (also called A1AT, A1A, AAT, alpha1-proteinase inhibitor/A1PI, alpha1-antiproteinase/A1AP, and serum trypsin inhibitor) is a protease inhibitor. Clade A includes the classical serine proteinase inhibitors, alpha-1-antitrypsin and alpha-1-antichymotrypsin, protein C inhibitor, kallistatin, and non-inhibitory serpins, like corticosteroid and thyroxin binding globulins. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381016 [Multi-domain] Cd Length: 370 Bit Score: 167.09 E-value: 5.57e-48
serpin family B member 9, cytoplasmic antiproteinase 3; Cytoplasmic antiproteinase 3 (CAP-3; ...
30-389
1.06e-47
serpin family B member 9, cytoplasmic antiproteinase 3; Cytoplasmic antiproteinase 3 (CAP-3; peptidase inhibitor 9/PI-9, Spi6, or testicular tissue protein Li 180) is an intracellular inhibitor of granzyme B (grB) that protects cytotoxic lymphocytes from grB-mediated death. It is also thought to be expressed in accessory immune cells, including dendritic cells (DCs), although there is some debate about this. Overexpression of serpin B9 may prevent cytotoxic T-lymphocytes from eliminating certain tumor cells. A pseudogene of this gene is found on chromosome 6. Diseases associated with serpin B9 include chronic obstructive pulmonary disease (COPD) and oral squamous cell carcinoma (OSCC). The ovalbumin family of serpins (ov-serpins) is a family of closely related proteins, whose members can be secreted (ovalbumin), cytosolic (leukocyte elastase inhibitor, LEI), or targeted to both compartments (plasminogen activator inhibitor 2, PAI-2). It also characterized by N- and C-terminal extensions, the absence of a signal peptide, and a Ser rather than an Asn residue at the penultimate position. The ov-serpins corresponds to clade B of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381034 [Multi-domain] Cd Length: 376 Bit Score: 166.58 E-value: 1.06e-47
serpin family B member 11, epipin; Epipin/SERPINB11 has no serine protease inhibitory activity, ...
30-389
3.79e-47
serpin family B member 11, epipin; Epipin/SERPINB11 has no serine protease inhibitory activity, probably due to mutations in the scaffold, impairing conformational changes, and may have evolved a non-inhibitory function. The ovalbumin family of serpins (ov-serpins) is a family of closely related proteins, whose members can be secreted (ovalbumin), cytosolic (leukocyte elastase inhibitor, LEI), or targeted to both compartments (plasminogen activator inhibitor 2, PAI-2). It also characterized by N- and C-terminal extensions, the absence of a signal peptide, and a Ser rather than an Asn residue at the penultimate position. The ov-serpins corresponds to clade B of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381036 [Multi-domain] Cd Length: 392 Bit Score: 165.34 E-value: 3.79e-47
serpin family B member 14, ovalbumin; The chicken protein ovalbumin (OVA3), a storage protein ...
28-389
1.63e-45
serpin family B member 14, ovalbumin; The chicken protein ovalbumin (OVA3), a storage protein from egg white, lacking a loop insertion mechanism and therefore protease inhibitory activity, is a historical member of the serpin superfamily and the founding member of the subgroup known as ov-serpins (ovalbumin-related serpins). It has several modifications, including N-terminal acetylation, phosphorylation, and glycosylation. Ovalbumin is secreted from the cell, targeted by an internal signal sequence, rather than the N-terminal signal sequence commonly found in other secreted proteins. The ovalbumin family of serpins (ov-serpins) is a family of closely related proteins, whose members can be secreted (ovalbumin), cytosolic (leukocyte elastase inhibitor, LEI), or targeted to both compartments (plasminogen activator inhibitor 2, PAI-2). It also characterized by N- and C-terminal extensions, the absence of a signal peptide, and a Ser rather than an Asn residue at the penultimate position. The ov-serpins corresponds to clade B of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381015 [Multi-domain] Cd Length: 385 Bit Score: 160.80 E-value: 1.63e-45
serpin family F member 2, alpha2-antiplasmin inhibitor; Alpha2-antiplasmin inhibitor (A2AP/API, ...
24-389
3.71e-45
serpin family F member 2, alpha2-antiplasmin inhibitor; Alpha2-antiplasmin inhibitor (A2AP/API, also called plasmin inhibitor/PLI or alpha-2-antiplasmin) is the primary inhibitor of plasmin, a proteinase that digests fibrin, the main component of blood clots. Alpha2AP forms an inactive 1:1 stoichiometric complex with plasmin. It also rapidly crosslinks to fibrin during blood clotting by activated coagulation factor XIII, and as a consequence fibrin becomes more resistant to fibrinolysis. Therefore alpha2AP is important in modulating the effectiveness and persistence of fibrin with respect to its susceptibility to digestion and removal by plasmin. This subgroup corresponds to clade F2 of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381009 [Multi-domain] Cd Length: 363 Bit Score: 159.37 E-value: 3.71e-45
serpin family B member 7, megsin; Megsin is named as such due to its primary expression in the ...
28-389
2.74e-44
serpin family B member 7, megsin; Megsin is named as such due to its primary expression in the mesangium, a structure associated with the capillaries in the glomerulus of the kidney. Megsin is thought to play a role in the regulation of a wide variety of processes in mesangial cells, such as matrix metabolism, cell proliferation, and apoptosis. Identification of the exact biological functions and target proteases of megsin will lead to the development of novel therapeutic approaches to glomerular diseases. Expression of this gene is upregulated in IgA nephropathy and mutations have been found to cause palmoplantar keratoderma, Nagashima type. Megsin belongs to the ovalbumin family of serpins (ov-serpins), a family of closely related proteins, whose members can be secreted (ovalbumin), cytosolic (leukocyte elastase inhibitor, LEI), or targeted to both compartments (plasminogen activator inhibitor 2, PAI-2). It also characterized by N- and C-terminal extensions, the absence of a signal peptide, and a Ser rather than an Asn residue at the penultimate position. The ov-serpins corresponds to clade B of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381032 [Multi-domain] Cd Length: 380 Bit Score: 157.46 E-value: 2.74e-44
serpin family B member 13, headpin; Headpin (also known as hurpin or proteinase inhibitor 13 ...
26-389
3.84e-44
serpin family B member 13, headpin; Headpin (also known as hurpin or proteinase inhibitor 13/P113) maps to chromosome 18q21.3 and is expressed in normal squamous epithelium of the oral mucosa, skin, and cervix. Inhibitory serpins are known to play an important role in tumor invasion, metastasis, tumor suppression and apoptosis. Headpin belongs to the ovalbumin family of serpins (ov-serpins), a family of closely related proteins, whose members can be secreted (ovalbumin), cytosolic (leukocyte elastase inhibitor, LEI), or targeted to both compartments (plasminogen activator inhibitor 2, PAI-2). It also characterized by N- and C-terminal extensions, the absence of a signal peptide, and a Ser rather than an Asn residue at the penultimate position. The ov-serpins corresponds to clade B of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381038 [Multi-domain] Cd Length: 391 Bit Score: 157.19 E-value: 3.84e-44
serpin family A member 3, alpha 1-antichymotrypsin; Alpha 1-antichymotrypsin (a1AC/A1AC/a1ACT ...
27-389
4.65e-44
serpin family A member 3, alpha 1-antichymotrypsin; Alpha 1-antichymotrypsin (a1AC/A1AC/a1ACT/AACT) is an alpha globulin glycoprotein that is a member of the serpin superfamily. In humans, it is encoded by the SERPINA3 gene. It inhibits the activity of proteases, such as cathepsin G that is found in neutrophils, and chymases found in mast cells, by cleaving them into a different shape or conformation. This activity protects some tissues, such as the lower respiratory tract, from damage caused by proteolytic enzymes. Deficiency of this protein has been associated with liver disease. Mutations have been identified in patients with Parkinson disease and chronic obstructive pulmonary disease. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381019 [Multi-domain] Cd Length: 382 Bit Score: 157.05 E-value: 4.65e-44
serpin family B member 5, mammary serine proteinase inhibitor; Mammary serine proteinase ...
26-389
5.28e-44
serpin family B member 5, mammary serine proteinase inhibitor; Mammary serine proteinase inhibitor (maspin, also known as proteinase inhibitor 5/PI5), a member of the serpin superfamily, is related to the ov-serpins, with a multitude of effects on cells and tissues at an assortment of developmental stages. Maspin has tumor suppressing activity against breast and prostate cancer. All true inhibitory serpins rely on an exposed reactive center loop (RCL) to inhibit their target proteinase, in which the proteinase cleaves the RCL and becomes incorporated into a serpin-proteinase complex. Maspin differs from other serpins in that its RCL is necessary for activity, but it is not cleaved or rearranged. The ovalbumin family of serpins (ov-serpins) is a family of closely related proteins, whose members can be secreted (ovalbumin), cytosolic (leukocyte elastase inhibitor, LEI), or targeted to both compartments (plasminogen activator inhibitor 2, PAI-2). It also characterized by N- and C-terminal extensions, the absence of a signal peptide, and a Ser rather than an Asn residue at the penultimate position. The ov-serpins corresponds to clade B of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381013 [Multi-domain] Cd Length: 375 Bit Score: 156.55 E-value: 5.28e-44
serpin family A member 4, kallistatin; Kallistatin (KST, also called proteinase inhibitor 4 ...
20-389
5.98e-44
serpin family A member 4, kallistatin; Kallistatin (KST, also called proteinase inhibitor 4/PI4, or kallikrein inhibitor/KAL) is a protein that in humans is encoded by the SERPINA4 gene. Kallistatin inhibits human amidolytic and kininogenase activities of tissue kallikrein. Heparin blocks kallistatin's complex formation with tissue kallikrein and abolishes its inhibitory effect on tissue kallikrein's activity. Kallistatin was found to be expressed in human liver, stomach, pancreas, kidney, aorta, testes, prostate, artery, atrium, ventricle, lung, renal proximal tubular cell, and a colonic carcinoma cell line T84. This family belongs to the clade A of the serpin superfamily, which includes the classical serine proteinase inhibitors, alpha-1-antitrypsin and alpha-1-antichymotrypsin, protein C inhibitor, kallistatin, and non-inhibitory serpins, like corticosteroid and thyroxin binding globulins. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381020 [Multi-domain] Cd Length: 383 Bit Score: 156.51 E-value: 5.98e-44
serpin-like proteins found in mimiviruses; These viral serpins are from Mimiviridae ...
11-384
6.35e-42
serpin-like proteins found in mimiviruses; These viral serpins are from Mimiviridae (Tupanvirus, Powai, Bandra, Moumouvirus, and Megavirus) and may represent a new clade of viral serpins. Mimiviridae are thought to have a common evolutionary origin with Poxviridae whose viral serpins are classified into clades N and O. N is composed of viral serpin-1 (SPI-1-like) and viral serpin-2 (SPI-2-like) serpins and clade O is made up of viral serpin-3 (SPI-3-like) serpins. Mimiviruses have the only known viral serpins outside of the poxvirus family. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381052 [Multi-domain] Cd Length: 355 Bit Score: 150.60 E-value: 6.35e-42
serpin family E member 2, glia derived nexin (GDN); Serpin glia-derived nexin (GDN; also ...
9-386
6.95e-41
serpin family E member 2, glia derived nexin (GDN); Serpin glia-derived nexin (GDN; also called peptidase inhibitor 7/PI-7 or protease nexin 1/PN-1) is a specific and extremely efficient inhibitor of thrombin. Unlike other thrombin inhibitors, it is not synthesized in the liver and does not circulate in the blood. It is instead expressed by multiple cell types and is located on the surface of these cells, bound to glycosaminoglycans. GDN plays a role in thrombosis and atherosclerosis and is a clade E serpin. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381039 [Multi-domain] Cd Length: 375 Bit Score: 148.36 E-value: 6.95e-41
insect serpins similar to Anopheles gambiae Serpin 18; Serpins in insects function within ...
28-385
8.68e-41
insect serpins similar to Anopheles gambiae Serpin 18; Serpins in insects function within development, wound healing and immunity. A. gambiae serpin 18 is categorized as non-inhibitory based on the sequence of its reactive-center loop. It is expressed throughout all life stages in multiple tissues and the hemolymph, and is predicted to be secreted based on the presence of a signal peptide. Insect serpins from mosquitoes are included in this subfamily. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381063 [Multi-domain] Cd Length: 354 Bit Score: 147.58 E-value: 8.68e-41
serpin family A member 1, alpha-1-antitrypsin; Alpha-1-antitrypsin (also called A1AT, A1A, AAT, ...
20-391
2.37e-40
serpin family A member 1, alpha-1-antitrypsin; Alpha-1-antitrypsin (also called A1AT, A1A, AAT, alpha1-proteinase inhibitor/A1PI, alpha1-antiproteinase/A1AP, proteinase inhibitor/PI, and serum trypsin inhibitor) is a protease inhibitor that belongs to the serpin superfamily. It is encoded in humans by the SERPINA1 gene. When the blood contains inadequate amounts of A1AT or functionally defective A1AT (such as in alpha-1 antitrypsin deficiency), neutrophil elastase is excessively free to break down elastin, degrading the elasticity of the lungs, which results in respiratory complications, such as chronic obstructive pulmonary disease. Normally, A1AT leaves its site of origin, the liver, and joins the systemic circulation; defective A1AT fails to do so, building up in the liver, which results in cirrhosis. This family contains other A1AT-like members of clade A of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381012 [Multi-domain] Cd Length: 368 Bit Score: 146.78 E-value: 2.37e-40
serpin family A member 12, visceral adipose tissue-derived serpin; Vaspin, also called ...
17-389
6.10e-40
serpin family A member 12, visceral adipose tissue-derived serpin; Vaspin, also called visceral adipose tissue-derived serpin or serpinA12, was identified as an adipokine with insulin-sensitizing effects and has been shown to significantly reduce blood glucose concentrations in various mouse models. As such, vaspin may represent a novel treatment tool for diabetes intervention strategies. Human kallikrein 7 (hK7), which cleaves human insulin within A and B chain, was the first protease target of vaspin inhibited by classical serpin mechanism with high specificity in vitro. This family belongs to the clade A of the serpin superfamily, which includes the classical serine proteinase inhibitors, alpha-1-antitrypsin and alpha-1-antichymotrypsin, protein C inhibitor, kallistatin, and non-inhibitory serpins, like corticosteroid and thyroxin binding globulins. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381026 [Multi-domain] Cd Length: 372 Bit Score: 145.68 E-value: 6.10e-40
serpin family M, Schistosoma haematobium serpin; ShSPI is a serpin from the trematode ...
10-389
8.82e-40
serpin family M, Schistosoma haematobium serpin; ShSPI is a serpin from the trematode Schistosoma haematobium. The protein is exposed on the surface of invading cercaria as well as of adult worms, suggesting its involvement in the parasite-host interaction. It has several distinctive features, mostly concerning the helical subdomain of the protein. It is proposed that these peculiarities are related to the unique biological properties of a small serpin subfamily which is conserved among pathogenic schistosomes. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381048 [Multi-domain] Cd Length: 388 Bit Score: 145.60 E-value: 8.82e-40
serpin family A member 5, protein C inhibitor; Protein C inhibitor (PCI/PROCI, also called ...
21-389
1.19e-38
serpin family A member 5, protein C inhibitor; Protein C inhibitor (PCI/PROCI, also called PAI3, plasminogen activator inhibitor-3/PLANH3, plasma serine protease inhibitor) has many biological functions. It acts as a pro-coagulant in blood and in the seminal vesicles, it is required for spermatogenesis. It is a member of the clade A serpin family that includes the classical serine proteinase inhibitors, alpha-1-antitrypsin and alpha-1-antichymotrypsin, protein C inhibitor, kallistatin, and non-inhibitory serpins, like corticosteroid and thyroxin binding globulins. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381021 [Multi-domain] Cd Length: 364 Bit Score: 142.21 E-value: 1.19e-38
serpin family F member 1, Pigment epithelium-derived factor (PEDF); Pigment epithelium-derived ...
20-386
8.14e-38
serpin family F member 1, Pigment epithelium-derived factor (PEDF); Pigment epithelium-derived factor (PEDF, also called capsin or EPC-1) is an extracellular component of the retinal interphotoreceptor matrix, vitreous humor, and aqueous humor of the adult eye. PEDF is non-inhibitory member of the serpin superfamily. It exhibits neurotrophic, neuroprotective and antiangiogenic properties and is widely expressed in the developing and adult nervous systems. This subgroup corresponds to clade F1 of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381008 [Multi-domain] Cd Length: 373 Bit Score: 139.84 E-value: 8.14e-38
serpin family E member 3; The function of serpin E3 is not known. It is a member of clade E, ...
9-389
3.79e-35
serpin family E member 3; The function of serpin E3 is not known. It is a member of clade E, which also includes nexin and plasminogen activator inhibitor type 1, of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381040 [Multi-domain] Cd Length: 384 Bit Score: 132.84 E-value: 3.79e-35
serpin family B member 12, yukopin; Yukopin, encoded by the SERPINB12 gene, is a member of the ...
30-389
9.54e-35
serpin family B member 12, yukopin; Yukopin, encoded by the SERPINB12 gene, is a member of the serpin superfamily of serine protease inhibitors. It inhibits trypsin and plasmin, but not thrombin, coagulation factor Xa, or urokinase-type plasminogen activator. An important paralog of this gene is SERPINB4. The ovalbumin family of serpins (ov-serpins) is a family of closely related proteins, whose members can be secreted (ovalbumin), cytosolic (leukocyte elastase inhibitor, LEI), or targeted to both compartments (plasminogen activator inhibitor 2, PAI-2). It also characterized by N- and C-terminal extensions, the absence of a signal peptide, and a Ser rather than an Asn residue at the penultimate position. The ov-serpins corresponds to clade B of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381037 [Multi-domain] Cd Length: 420 Bit Score: 132.68 E-value: 9.54e-35
viral serpin; CrmA is a viral serpin that inhibits both cysteine and serine proteinases ...
27-389
2.13e-34
viral serpin; CrmA is a viral serpin that inhibits both cysteine and serine proteinases involved in the regulation of host inflammatory and apoptosis processes. It differs from other members of the serpin superfamily by having a shorter reactive center loop as well as possessing an additional highly charged antiparallel beta-strand of beta-sheet A, whose sequence and length are unique. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381069 [Multi-domain] Cd Length: 413 Bit Score: 131.60 E-value: 2.13e-34
serpin family N, viral serpin-1 and serpin-2; This group of viral serpins are from the ...
14-385
9.08e-34
serpin family N, viral serpin-1 and serpin-2; This group of viral serpins are from the Orthopoxvirus branch (cowpox, ectromelia, vaccinia, variola, and rabbitpox) and corresponding to clade N which contains viral serpin-1 (SPI-1-like) and viral serpin-2 (SPI-2-like) serpins. The other is clade O which contains the viral serpin-3 (SPI-3-like) serpins. SPI-2, also called cytokine response modifier A (crmA), acts to inhibit inflammation and apoptosis. SPI-1, a serpin that is approximately 45% identical to SPI-2, has also been implicated in the inhibition of apoptosis, since certain cells infected with RPV SPI-1 mutants undergo apoptotic cell death. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381049 [Multi-domain] Cd Length: 347 Bit Score: 128.45 E-value: 9.08e-34
serpin family A member 11; Serpin A11, in rats also called liver regeneration-related protein ...
30-389
2.36e-33
serpin family A member 11; Serpin A11, in rats also called liver regeneration-related protein LRRG023, is a serpin encoded by the gene SERPINA11. It maps on chromosome 14, at 14q32.13 and is strongly expressed in the human liver. The function of this protein is unknown. It belongs to the clade A of the serpin superfamily, which includes the classical serine proteinase inhibitors, alpha-1-antitrypsin and alpha-1-antichymotrypsin, protein C inhibitor, kallistatin, and non-inhibitory serpins, like corticosteroid and thyroxin binding globulins. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381025 [Multi-domain] Cd Length: 373 Bit Score: 127.84 E-value: 2.36e-33
serpin family A member 6, corticosteroid-binding globulin; Corticosteroid-binding globulin ...
16-390
1.07e-32
serpin family A member 6, corticosteroid-binding globulin; Corticosteroid-binding globulin (CBG, also known as transcortin) is encoded by the SERPINA6 gene in humans which encodes an alpha-globulin with corticosteroid-binding properties. It is produced in the liver. CBG binds several steroid hormones at high rates including cortisol, cortisone, deoxycorticosterone (DOC), corticosterone, aldosterone, progesterone, and 17a-hydroxyprogesterone. This family belongs to the clade A of the serpin superfamily, which includes the classical serine proteinase inhibitors, alpha-1-antitrypsin and alpha-1-antichymotrypsin, protein C inhibitor, kallistatin, and non-inhibitory serpins, like corticosteroid and thyroxin binding globulins. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381022 [Multi-domain] Cd Length: 373 Bit Score: 125.95 E-value: 1.07e-32
serpin family A member 9, centerin; Centerin, also known as germinal center B-cell-expressed ...
15-389
8.42e-31
serpin family A member 9, centerin; Centerin, also known as germinal center B-cell-expressed transcript 1/GCET1, is a serpin whose expression is restricted to germinal center B-cells and lymphoid malignancies with germinal center B-cell maturation. Expression of centerin, together with bcl-6 and GCET2, constitutes a germinal center B-cell signature, which is associated with a good prognosis in diffuse large B-cell lymphomas. Centerin is thought to function in vivo in the germinal centre as an efficient inhibitor of a trypsin-like protease. It also inhibits the trypsin-like serine proteases trypsin, thrombin and plasmin and is able to bind heparin and DNA. The centerin gene maps to the A clade serpin cluster on chromosome 14q32.1, which also contains a1-antitrypsin and a1-antichymotrypsin together with seven other serpins. The clade A of the serpin superfamily includes the classical serine proteinase inhibitors, alpha-1-antitrypsin and alpha-1-antichymotrypsin, protein C inhibitor, kallistatin, and non-inhibitory serpins, like corticosteroid and thyroxin binding globulins. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381024 [Multi-domain] Cd Length: 388 Bit Score: 121.29 E-value: 8.42e-31
serpin family A member 7, thyroxine-binding globulin; Thyroxine-binding globulin (TBG, also ...
8-389
2.11e-30
serpin family A member 7, thyroxine-binding globulin; Thyroxine-binding globulin (TBG, also called T4-binding globulin) is a globulin that binds thyroid hormones in circulation. It is one of three transport proteins (along with transthyretin and serum albumin) responsible for carrying the thyroid hormones thyroxine (T4) and triiodothyronine (T3) in the bloodstream. TBG is synthesized primarily in the liver and is a serpin with no inhibitory function like many other members of this class of proteins. There are two forms of inherited thyroxine-binding globulin deficiency: the complete form (TBG-CD), which results in a total loss of thyroxine-binding globulin, and the partial form (TBG-PD), which reduces the amount of this protein or alters its structure. Neither of these conditions causes any problems with thyroid function, but it can be mistaken for more serious thyroid disorders, such as hypothyroidism. This family belongs to the clade A of the serpin superfamily, which includes the classical serine proteinase inhibitors, alpha-1-antitrypsin and alpha-1-antichymotrypsin, protein C inhibitor, kallistatin, and non-inhibitory serpins, like corticosteroid and thyroxin binding globulins. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381023 [Multi-domain] Cd Length: 379 Bit Score: 120.10 E-value: 2.11e-30
serpin-like proteins found in poxviruses; These are viral serpins from poxviridae that are not ...
26-389
1.11e-28
serpin-like proteins found in poxviruses; These are viral serpins from poxviridae that are not in the Orthopoxvirus branch (cowpox, ectromelia, vaccinia, variola, and rabbitpox) that contains clade N serpins (viral serpin-1/SPI-1-like and viral serpin-2/SPI-2-like) and clade O serpins (viral serpin-3/SPI-3-like). The members here include fowlpox virus, canarypox virus, deerpox virus, tanapox virus, an cotia virus and belong to other poxviridae branches including Leporipoxvirus, Yatapoxvirus, and Avipoxvirus. These viruses have a variety of hosts including humans, birds, and mice. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381051 [Multi-domain] Cd Length: 345 Bit Score: 114.42 E-value: 1.11e-28
serpin family A member 2, protease inhibitor 1-like; Protease inhibitor 1-like (also called ...
26-389
1.26e-28
serpin family A member 2, protease inhibitor 1-like; Protease inhibitor 1-like (also called serpin peptidase inhibitor, clade A (alpha-1 antiproteinase, antitrypsin), member 2, ARGS, protease inhibitor 1 (alpha-1-antitrypsin)-like)/PIL, and alpha-1-antitrypsin-related protein/ATR) belongs to the serpin superfamily and is encoded by the SERPINA2 gene in humans. SERPINA2 was once thought to be a pseudogene, but recent evidence shows that it produces an active transcript. It is very similar in structure and function to SERPINA1. This family belongs to the clade A of the serpin superfamily, which includes the classical serine proteinase inhibitors, alpha-1-antitrypsin and alpha-1-antichymotrypsin, protein C inhibitor, kallistatin, and non-inhibitory serpins, like corticosteroid and thyroxin binding globulins. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381018 [Multi-domain] Cd Length: 363 Bit Score: 114.71 E-value: 1.26e-28
serpin family proteins from protozoa; This group includes a variety of serpin clades from ...
30-388
2.59e-28
serpin family proteins from protozoa; This group includes a variety of serpin clades from various protozoa including Neospora caninum that causes neosporosis, Toxoplasma gondii that causes toxoplasmosis, and Hammondia hammondi. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381068 [Multi-domain] Cd Length: 439 Bit Score: 115.14 E-value: 2.59e-28
cellulosomal serpin precursor; A single fungal serpin has been characterized to date: celpin ...
30-384
2.97e-28
cellulosomal serpin precursor; A single fungal serpin has been characterized to date: celpin from Piromyces spp. strain E2. Piromyces is a genus of anaerobic fungi found in the gut of ruminants and is important for digesting plant material. Celpin is predicted to be inhibitory and contains two N-terminal dockerin domains in addition to its serpin domain. Dockerins are commonly found in proteins that localise to the fungal cellulosome, a large extracellular multiprotein complex that breaks down cellulose.[21] It is therefore suggested that celpin may protect the cellulosome against plant proteases. Certain bacterial serpins similarly localize to the cellulosome.[186] SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381060 [Multi-domain] Cd Length: 361 Bit Score: 113.78 E-value: 2.97e-28
serpin family G member 1, plasma proteinase C1 inhibitor; Plasma proteinase C1 inhibitor ...
14-386
9.29e-28
serpin family G member 1, plasma proteinase C1 inhibitor; Plasma proteinase C1 inhibitor (C1-INH/C1IN) is a protease inhibitor of the serpin family. It plays a pivotal role in regulating the activation of the classical complement pathway and of the contact system, via regulating bradykinin formation, inhibiting factor XII and kallikrein of the contact system, and via acting on factor XI in the coagulation cascade. This subgroup corresponds to clade G of the serpin superfamily. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381006 [Multi-domain] Cd Length: 362 Bit Score: 112.46 E-value: 9.29e-28
serpin family A member 16, HongrES1 and similar proteins; HongrES1 is an epididymis-specific ...
30-389
3.08e-22
serpin family A member 16, HongrES1 and similar proteins; HongrES1 is an epididymis-specific secretory protein and is encoded by the SERPINA16 gene. It is one of several potential decapacitation factors of rodents, including a 40-kDa glycoprotein, phosphatidylethanolamine-binding protein 1 (PEBP1), a cysteine-rich secretory protein 1, an acrosome-stabilizing factor, SVA, SVS2, and SPINKL. In humans, some potential decapacitation factors that have been reported are glycodelin-S, semenogelin I, a 130-kDa glycoprotein, and some mannosyl glycopeptides. Decapitation factors are removed from the sperm head surface during the capacitation process and are able to reverse sperm capacitation. The clade A of the serpin superfamily includes the classical serine proteinase inhibitors, alpha-1-antitrypsin and alpha-1-antichymotrypsin, protein C inhibitor, kallistatin, and non-inhibitory serpins, like corticosteroid and thyroxin binding globulins. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381053 [Multi-domain] Cd Length: 373 Bit Score: 96.79 E-value: 3.08e-22
serpin family O, viral serpin-3; This group of viral serpins are from the Orthopoxvirus branch ...
17-385
3.21e-21
serpin family O, viral serpin-3; This group of viral serpins are from the Orthopoxvirus branch (cowpox, ectromelia, vaccinia, variola, and rabbitpox) and corresponding to clade O which contains the viral serpin-3 (SPI-3-like) serpins. The other is clade N which contains viral serpin-1 (SPI-1-like) and viral serpin-2 (SPI-2-like) serpins. SPI-3 is an N-glycosylated bifunctional protein that acts as both a proteinase inhibitor and a suppressor of infected cell-cell fusion. SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381050 [Multi-domain] Cd Length: 350 Bit Score: 93.56 E-value: 3.21e-21
serpin family A member 14, uterine milk protein and uteroferrin-associated basic protein 2; ...
28-390
3.42e-19
serpin family A member 14, uterine milk protein and uteroferrin-associated basic protein 2; The uteroferrin(Uf)-associated basic proteins-2(UABP-2/UABP/UfAP) are a group of three (Mr = 42K, 48K, and 50K) antigenically related, basic glycoproteins secreted by the porcine uterus under the influence of progesterone (P4), which exist as heterodimers (Mr = 80,000) with the iron-binding acid phosphatase, Uf. This group also contains UTMP (uterine milk protein), encoded by SERPINA14. UTMP binds noncovalently to the iron-containing glycoprotein uteroferrin, which displays phosphatase activity and is thought to be involved with iron transport to the fetus. Synthesis of these serpins is induced by progesterone in the uterus. UTMP is also an activin-binding protein and has been implicated in regulation of uterine immune function. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381027 [Multi-domain] Cd Length: 386 Bit Score: 88.27 E-value: 3.42e-19
serpin family H member 1, collagen-binding protein 1; Collagen-binding protein 1 (CBP1, also ...
14-389
3.11e-18
serpin family H member 1, collagen-binding protein 1; Collagen-binding protein 1 (CBP1, also called heat shock protein 47/hsp47 or colligin), because of its collagen binding ability, is a chaperone specific protein for the correct folding of types I-V procollagen in the endoplasmic reticulum (ER). It is induced under stress conditions through heat shock element-heat shock factor interaction and has been shown to be essential for collagen biosynthesis. Hsp47 transiently binds to procollagen in the ER, dissociates in the cis-Golgi or ER-Golgi intermediate compartment, and is then transported back to the ER via its RDEL retention sequence. Hsp47 recognizes collagenous (Gly-Xaa-Arg) repeats on triple-helical procollagen and can prevent local unfolding and/or aggregate formation of procollagen. Hsp47 is a non-inhibitory member of the SERPIN superfamily and corresponds to clade H. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381003 [Multi-domain] Cd Length: 382 Bit Score: 85.33 E-value: 3.11e-18
serpin family A member 8, angiotensinogen; Angiotensinogen (AGT) is part of the ...
9-390
2.59e-14
serpin family A member 8, angiotensinogen; Angiotensinogen (AGT) is part of the renin-angiotensin system (RAS), which plays an important role in blood pressure regulation, renal hemodynamics, as well as fluid and electrolyte homeostasis. It is also involved in normal and abnormal growth processes. The growth promoting actions of angiotensin have been shown in a variety of cells and tissues. This subgroup represents clade A8 of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants have been associated with blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381010 [Multi-domain] Cd Length: 446 Bit Score: 74.10 E-value: 2.59e-14
serpin family H member 2; The function of Danio rerio serpin H2 is not known. In general, ...
26-384
8.22e-14
serpin family H member 2; The function of Danio rerio serpin H2 is not known. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Pssm-ID: 381041 [Multi-domain] Cd Length: 382 Bit Score: 72.28 E-value: 8.22e-14
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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