Glycerol-3-phosphate dehydrogenase [Energy production and conversion]; Glycerol-3-phosphate ...
91-604
0e+00
Glycerol-3-phosphate dehydrogenase [Energy production and conversion]; Glycerol-3-phosphate dehydrogenase is part of the Pathway/BioSystem: Isoprenoid biosynthesis
Pssm-ID: 440343 [Multi-domain] Cd Length: 501 Bit Score: 557.82 E-value: 0e+00
EF-hand, calcium binding motif; A diverse superfamily of calcium sensors and calcium signal ...
628-685
1.40e-09
EF-hand, calcium binding motif; A diverse superfamily of calcium sensors and calcium signal modulators; most examples in this alignment model have 2 active canonical EF hands. Ca2+ binding induces a conformational change in the EF-hand motif, leading to the activation or inactivation of target proteins. EF-hands tend to occur in pairs or higher copy numbers.
Pssm-ID: 238008 [Multi-domain] Cd Length: 63 Bit Score: 54.48 E-value: 1.40e-09
Glycerol-3-phosphate dehydrogenase [Energy production and conversion]; Glycerol-3-phosphate ...
91-604
0e+00
Glycerol-3-phosphate dehydrogenase [Energy production and conversion]; Glycerol-3-phosphate dehydrogenase is part of the Pathway/BioSystem: Isoprenoid biosynthesis
Pssm-ID: 440343 [Multi-domain] Cd Length: 501 Bit Score: 557.82 E-value: 0e+00
EF-hand, calcium binding motif; A diverse superfamily of calcium sensors and calcium signal ...
628-685
1.40e-09
EF-hand, calcium binding motif; A diverse superfamily of calcium sensors and calcium signal modulators; most examples in this alignment model have 2 active canonical EF hands. Ca2+ binding induces a conformational change in the EF-hand motif, leading to the activation or inactivation of target proteins. EF-hands tend to occur in pairs or higher copy numbers.
Pssm-ID: 238008 [Multi-domain] Cd Length: 63 Bit Score: 54.48 E-value: 1.40e-09
EF-hand motif found in phosphoinositide phospholipase C gamma isozymes (PI-PLC-gamma); ...
630-689
6.04e-07
EF-hand motif found in phosphoinositide phospholipase C gamma isozymes (PI-PLC-gamma); PI-PLC-gamma isozymes represent a class of metazoan PI-PLCs that hydrolyze the membrane lipid phosphatidylinositol 4,5-bisphosphate (PIP2) to propagate diverse intracellular responses that underlie the physiological action of many hormones, neurotransmitters, and growth factors. They can form a complex with the phosphorylated cytoplasmic domains of the immunoglobulin Ig-alpha and Ig-beta subunits of the B cell receptor (BCR), the membrane-tethered Src family kinase Lyn, phosphorylated spleen tyrosine kinase (Syk), the phosphorylated adaptor protein B-cell linker (BLNK), and activated Bruton's tyrosine kinase (Btk). Like other PI-PLC isozymes, PI-PLC-gamma isozymes contain a core set of domains, including an N-terminal pleckstrin homology (PH) domain, four atypical EF-hand motifs, a PLC catalytic core, and a single C2 domain. The PLC catalytic core domain is a TIM barrel with two highly conserved regions (X and Y) split by a highly degenerate linker sequence. Unique to PI-PLC-gamma, a second PH domain, which is split by two SH2 (Src homology 2) domains, and one SH3 (Src homology 3) domain, are present within this linker. The SH2 and SH3 domains are responsible for the binding of phosphotyrosine-containing sequences and proline-rich sequences, respectively. There are two PI-PLC-gamma isozymes (1-2), both of which are activated by receptor and non-receptor tyrosine kinases due to the presence of SH2 and SH3 domains.
Pssm-ID: 320031 [Multi-domain] Cd Length: 145 Bit Score: 49.49 E-value: 6.04e-07
EF-hand motif found in eukaryotic phosphoinositide-specific phospholipase C (PI-PLC, EC 3.1.4. ...
628-712
2.04e-04
EF-hand motif found in eukaryotic phosphoinositide-specific phospholipase C (PI-PLC, EC 3.1.4.11) isozymes; PI-PLC isozymes are signaling enzymes that hydrolyze the membrane phospholipids phosphatidylinositol-4,5-bisphosphate (PIP2) to generate two important second messengers in eukaryotic signal transduction cascades, Inositol 1,4,5-trisphosphate (InsP3) and diacylglycerol (DAG). InsP3 triggers inflow of calcium from intracellular stores, while DAG, together with calcium, activates protein kinase C, which goes on to phosphorylate other molecules, leading to altered cellular activity. Calcium is required for the catalysis. This family corresponds to the four EF-hand motifs containing PI-PLC isozymes, including PI-PLC-beta (1-4), -gamma (1-2), -delta (1,3,4), -epsilon (1), -zeta (1), eta (1-2). Lower eukaryotes such as yeast and slime molds contain only delta-type isozymes. In contrast, other types of isoforms present in higher eukaryotes. This family also includes 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase 1 (PLC1) from fungi. Some homologs from plants contain only two atypical EF-hand motifs and they are not included. All PI-PLC isozymes except sperm-specific PI-PLC-zeta share a core set of domains, including an N-terminal pleckstrin homology (PH) domain, four atypical EF-hand motifs, a PLC catalytic core, and a single C2 domain. PI-PLC-zeta lacks the PH domain. The PLC catalytic core domain is a TIM barrel with two highly conserved regions (X and Y) split by a highly degenerate linker sequence. Most of EF-hand motifs found in PI-PLCs consist of a helix-loop-helix structure, but lack residues critical to metal binding. Moreover, the EF-hand region of most of PI-PLCs may have an important regulatory function, but it has yet to be identified. However, PI-PLC-zeta is a key exception. It is responsible for Ca2+ oscillations in fertilized oocytes and exhibits a high sensitivity to Ca2+ mediated through its EF-hand domain. In addition, PI-PLC-eta2 shows a canonical EF-loop directing Ca2+-sensitivity and thus can amplify transient Ca2+ signals. Also it appears that PI-PLC-delta1 can regulate the binding of PH domain to PIP2 in a Ca2+-dependent manner through its functionally important EF-hand domains. PI-PLCs can be activated by a variety of extracellular ligands, such as growth factors, hormones, cytokines and lipids. Their activation has been implicated in tumorigenesis and/or metastasis linked to migration, proliferation, growth, inflammation, angiogenesis and actin cytoskeleton reorganization. PI-PLC-beta isozymes are activated by G-protein coupled receptor (GPCR) through different mechanisms. However, PI-PLC-gamma isozymes are activated by receptor tyrosine kinase (RTK), such as Rho and Ras GTPases. In contrast, PI-PLC-epsilon are activated by both GPCR and RTK. PI-PLC-delta1 and PLC-eta 1 are activated by GPCR-mediated calcium mobilization. The activation mechanism for PI-PLC-zeta remains unclear.
Pssm-ID: 320029 [Multi-domain] Cd Length: 137 Bit Score: 41.88 E-value: 2.04e-04
Penta-EF hand, calcium binding motifs, found in Group I PEF proteins; The family corresponds ...
628-690
3.20e-04
Penta-EF hand, calcium binding motifs, found in Group I PEF proteins; The family corresponds to Group I PEF proteins that have been found not only in higher animals but also in lower animals, plants, fungi and protists. Group I PEF proteins include apoptosis-linked gene 2 protein (ALG-2), peflin and similar proteins. ALG-2, also termed programmed cell death protein 6 (PDCD6), is a widely expressed calcium-binding modulator protein associated with cell proliferation and death, as well as cell survival. It forms a homodimer in the cell or a heterodimer with its closest paralog peflin. Among the PEF proteins, ALG-2 can bind three Ca2+ ions through its EF1, EF3, and EF5 hands, where it is unique in that its EF5 hand binds Ca2+ ion in a canonical coordination. Peflin is a ubiquitously expressed 30-kD PEF protein containing five EF-hand motifs in its C-terminal domain and a longer N-terminal hydrophobic domain (NHB domain) than any other member of the PEF family. The NHB domain harbors nine repeats of a nonapeptide (A/PPGGPYGGP). Peflin may modulate the function of ALG-2 in Ca2+ signaling. It exists only as a heterodimer with ALG-2, and binds two Ca2+ ions through its EF1 and EF3 hands. Its additional EF5 hand is unpaired and does not bind Ca2+ ion but mediates the heterodimerization with ALG-2. The dissociation of heterodimer occurs in the presence of Ca2+.
Pssm-ID: 320055 [Multi-domain] Cd Length: 164 Bit Score: 41.75 E-value: 3.20e-04
EF-hand motif found in phosphoinositide phospholipase C delta (PI-PLC-delta); PI-PLC-delta ...
630-689
3.28e-04
EF-hand motif found in phosphoinositide phospholipase C delta (PI-PLC-delta); PI-PLC-delta isozymes represent a class of metazoan PI-PLCs that are some of the most sensitive to calcium among all PLCs. Their activation is modulated by intracellular calcium ion concentration, phospholipids, polyamines, and other proteins, such as RhoAGAP. Like other PI-PLC isozymes, PI-PLC-delta isozymes contain a core set of domains, including an N-terminal pleckstrin homology (PH) domain, four atypical EF-hand motifs, a PLC catalytic core, and a single C-terminal C2 domain. The PLC catalytic core domain is a TIM barrel with two highly conserved regions (X and Y) split by a highly degenerate linker sequence. There are three PI-PLC-delta isozymes (1, 3 and 4). PI-PLC-delta1 is relatively well characterized. It is activated by high calcium levels generated by other PI-PLC family members, and therefore functions as a calcium amplifier within the cell. Different PI-PLC-delta isozymes have different tissue distribution and different subcellular locations. PI-PLC-delta1 is mostly a cytoplasmic protein, PI-PLC-delta3 is located in the membrane, and PI-PLC-delta4 is predominantly detected in the cell nucleus. PI-PLC-delta isozymes is evolutionarily conserved even in non-mammalian species, such as yeast, slime molds and plants.
Pssm-ID: 320032 [Multi-domain] Cd Length: 140 Bit Score: 41.44 E-value: 3.28e-04
Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and ...
633-686
5.01e-04
Eps15 homology domain; found in proteins implicated in endocytosis, vesicle transport, and signal transduction. The alignment contains a pair of EF-hand motifs, typically one of them is canonical and binds to Ca2+, while the other may not bind to Ca2+. A hydrophobic binding pocket is formed by residues from both EF-hand motifs. The EH domain binds to proteins containing NPF (class I), [WF]W or SWG (class II), or H[TS]F (class III) sequence motifs.
Pssm-ID: 238009 [Multi-domain] Cd Length: 67 Bit Score: 38.74 E-value: 5.01e-04
EF-hand motif found in phosphoinositide phospholipase C gamma 1 (PI-PLC-gamma1); PI-PLC-gamma1, ...
630-692
5.31e-04
EF-hand motif found in phosphoinositide phospholipase C gamma 1 (PI-PLC-gamma1); PI-PLC-gamma1, also termed 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase gamma-1, or PLC-148, or phospholipase C-II (PLC-II), or phospholipase C-gamma-1 (PLC-gamma-1), is abundantly expressed in embryonal cortical structures, neurons, oligodendrocytes and astrocytes, and is involved in various cellular events, including proliferation, differentiation, migration, survival, and cell death. It also associates with many diseases, including epilepsy, Huntington's disease (HD), depression, Alzheimer's disease (AD) and bipolar disorder. PI-PLC-gamma1 plays a critical role in cell migration and tumor cell invasiveness and metastasis. It can mediate the cell motility effects of growth factors, including platelet-derived growth factor (PDGF), epidermal growth factor (EGF), insulin-like growth factor (IGF) and hepatocyte growth factor (HGF), as well as adhesion receptors. Moreover, PI-PLC-gamma1 can modulate neurite outgrowth, neuronal cell migration and synaptic plasticity through the Trk receptor. PI-PLC-gamma1 contains an N-terminal pleckstrin homology (PH) domain, an array of EF hands, a PLC catalytic core domain, and a C2 domain. The PLC catalytic core domain is a TIM barrel with two highly conserved regions (X and Y) split by a highly degenerate linker sequence. Besides, PI-PLC-gamma1 has a second PH domain, two SH2 (Src homology 2) regions, and one SH3 (Src homology 3) region, which are present within this linker. PI-PLC-gamma1 is activated by receptor and non-receptor tyrosine kinases via its two SH2 and a single SH3 domain.
Pssm-ID: 320044 Cd Length: 146 Bit Score: 40.96 E-value: 5.31e-04
EF-hand, calcium binding motif, found in peflin and similar proteins; Peflin, also termed ...
633-690
2.24e-03
EF-hand, calcium binding motif, found in peflin and similar proteins; Peflin, also termed penta-EF hand (PEF) protein with a long N-terminal hydrophobic domain, or penta-EF hand domain-containing protein 1, is a ubiquitously expressed 30-kD PEF protein containing five EF-hand motifs in its C-terminal domain and a longer N-terminal hydrophobic domain (NHB domain) than any other member of the PEF family. The NHB domain harbors nine repeats of a nonapeptide (A/PPGGPYGGP). Peflin may modulate the function of ALG-2 in Ca2+ signaling. It exists only as a heterodimer with ALG-2, and binds two Ca2+ ions through its EF1 and EF3 hands. Its additional EF5 hand is unpaired and does not bind Ca2+ ion but mediates the heterodimerization with ALG-2. The dissociation of heterodimer occurs in the presence of Ca2+. In lower vertebrates, peflin may interact with transient receptor potential N (TRPN1), suggesting a potential role of peflin in fast transducer channel adaptation.
Pssm-ID: 320059 [Multi-domain] Cd Length: 165 Bit Score: 39.56 E-value: 2.24e-03
Succinate dehydrogenase/fumarate reductase, flavoprotein subunit [Energy production and ...
240-330
2.78e-03
Succinate dehydrogenase/fumarate reductase, flavoprotein subunit [Energy production and conversion]; Succinate dehydrogenase/fumarate reductase, flavoprotein subunit is part of the Pathway/BioSystem: TCA cycle
Pssm-ID: 440673 [Multi-domain] Cd Length: 443 Bit Score: 40.97 E-value: 2.78e-03
EF-hand, calcium binding motif, found in homologs of mammalian apoptosis-linked gene 2 protein ...
633-689
2.93e-03
EF-hand, calcium binding motif, found in homologs of mammalian apoptosis-linked gene 2 protein (ALG-2); The family includes some homologs of mammalian apoptosis-linked gene 2 protein (ALG-2) mainly found in lower eukaryotes, such as a parasitic protist Leishmarua major and a cellular slime mold Dictyostelium discoideum. These homologs contains five EF-hand motifs. Due to the presence of unfavorable residues at the Ca2+-coordinating positions, their non-canonical EF4 and EF5 hands may not bind Ca2+. Two Dictyostelium PEF proteins are the prototypes of this family. They may bind to cytoskeletal proteins and/or signal-transducing proteins localized to detergent-resistant membranes named lipid rafts, and occur as monomers or weak homo- or heterodimers like ALG-2. They can serve as a mediator for Ca2+ signaling-related Dictyostehum programmed cell death (PCD).
Pssm-ID: 320060 [Multi-domain] Cd Length: 163 Bit Score: 39.12 E-value: 2.93e-03
EF-hand, calcium binding motif, found in calumenin, reticulocalbin-1 (RCN-1), reticulocalbin-3 ...
623-685
3.53e-03
EF-hand, calcium binding motif, found in calumenin, reticulocalbin-1 (RCN-1), reticulocalbin-3 (RCN-3), and similar proteins; The family corresponds to a group of six EF-hand Ca2+-binding proteins, including calumenin (also known as crocalbin or CBP-50), reticulocalbin-1 (RCN-1), reticulocalbin-3 (RCN-3), and similar proteins. Calumenin is an endo/sarcoplasmic reticulum (ER/SR) resident low-affinity Ca2+-binding protein that contains six EF-hand domains and a C-terminal SR retention signal His-Asp-Glu-Phe (HDEF) tetrapeptide. It functions as a novel regulator of SERCA2, and its expressional changes are tightly coupled with Ca2+-cycling of cardiomyocytes. It is also broadly involved in haemostasis and in the pathophysiology of thrombosis. Moreover, the extracellular calumenin acts as a suppressor of cell migration and tumor metastasis. RCN-1 is an endoplasmic reticulum resident Ca2+-binding protein with a carboxyl-terminal His-Asp-Glu-Leu (HDEL) tetrapeptide signal. It acts as a potential negative regulator of B-RAF activation and can negatively modulate cardiomyocyte hypertrophy by inhibition of the mitogen-activated protein kinase signalling cascade. It also plays a key role in the development of doxorubicin-associated resistance. RCN-3 is a putative six EF-hand Ca2+-binding protein that contains five RXXR (X is any amino acid) motifs and a C-terminal ER retrieval signal HDEL tetrapeptide. The RXXR motif represents the target sequence of subtilisin-like proprotein convertases (SPCs). RCN-3 is specifically bound to the paired basic amino-acid-cleaving enzyme-4 (PACE4) precursor protein and plays an important role in the biosynthesis of PACE4.
Pssm-ID: 320024 [Multi-domain] Cd Length: 264 Bit Score: 39.87 E-value: 3.53e-03
EF-hand, calcium binding motif, found in CREC-EF hand family; The CREC (Cab45/reticulocalbin ...
622-696
5.94e-03
EF-hand, calcium binding motif, found in CREC-EF hand family; The CREC (Cab45/reticulocalbin/ERC45/calumenin)-EF hand family contains a group of six EF-hand, low-affinity Ca2+-binding proteins, including reticulocalbin (RCN-1), ER Ca2+-binding protein of 55 kDa (ERC-55, also known as TCBP-49 or E6BP), reticulocalbin-3 (RCN-3), Ca2+-binding protein of 45 kDa (Cab45 and its splice variant Cab45b), and calumenin ( also known as crocalbin or CBP-50). The proteins are not only localized in various parts of the secretory pathway, but also found in the cytosolic compartment and at the cell surface. They interact with different ligands or proteins and have been implicated in the secretory process, chaperone activity, signal transduction as well as in a large variety of disease processes.
Pssm-ID: 320021 [Multi-domain] Cd Length: 267 Bit Score: 39.35 E-value: 5.94e-03
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.
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