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Conserved domains on  [gi|157831279|pdb|1HBP|A]
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Chain A, RETINOL BINDING PROTEIN

Protein Classification

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
lipocalin_RBP_like cd00743
retinol-binding protein 4 and similar proteins; Retinol-Binding Protein 4 (RBP4) is a plasma ...
4-174 2.86e-128

retinol-binding protein 4 and similar proteins; Retinol-Binding Protein 4 (RBP4) is a plasma protein that transports retinol (vitamin A) from the liver stores to the peripheral tissues. The RBP4-retinol complex interacts with transthyretin (TTR - transports thyroxine and retinol) which protects it from renal excretion. In addition to retinol, other endogenous and synthetic retinoids bind RBP4, including all-trans and 13-cis retinoic acid, retinyl acetate, N-(ethyl)retinamide, and fenretinide. This group also includes purpurin, a retinol-specific protein that plays a role in neural retina cell adhesion during development of the chicken retina; it also binds retinol and may participate in retinol transporter in the retina. This group belongs to the lipocalin/cytosolic fatty-acid binding protein family which have a large beta-barrel ligand-binding cavity. Lipocalins are mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules, as well as membrane bound-receptors. They participate in processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty-acid binding proteins, also bind hydrophobic ligands in a non-covalent, reversible manner, and have been implicated in intracellular uptake, transport and storage of hydrophobic ligands, regulation of lipid metabolism and sequestration of excess toxic fatty acids, as well as in signaling, gene expression, inflammation, cell growth and proliferation, and cancer development.


:

Pssm-ID: 381184  Cd Length: 171  Bit Score: 357.14  E-value: 2.86e-128
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1HBP_A        4 CRVSSFRVKENFDKARFAGTWYAMAKKDPEGLFLQDNIVAEFSVDENGHMSATAKGRVRLLNNWDVCADMVGTFTDTEDP 83
Cdd:cd00743   1 CRVSSFRVKENFDKARYAGTWYAMAKKDPEGLFLQDNIVAEFSVDENGTMTATAKGRVRLLNNWDVCADMVGTFTDTEDP 80
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1HBP_A       84 AKFKMKYWGVASFLQKGNDDHWIIDTDYETFAVQYSCRLLNLDGTCADSYSFVFARDPSGFSPEVQKIVRQRQEELCLAR 163
Cdd:cd00743  81 AKFKMKYWGVASYLQKGNDDHWVIDTDYDTYAITYSCRLLNLDGTCADSYSFVFSRDPNGLPPEVQKIVRQRQEELCLAR 160
                       170
                ....*....|.
1HBP_A      164 QYRLIPHNGYC 174
Cdd:cd00743 161 QYRLVVHNGYC 171
 
Name Accession Description Interval E-value
lipocalin_RBP_like cd00743
retinol-binding protein 4 and similar proteins; Retinol-Binding Protein 4 (RBP4) is a plasma ...
4-174 2.86e-128

retinol-binding protein 4 and similar proteins; Retinol-Binding Protein 4 (RBP4) is a plasma protein that transports retinol (vitamin A) from the liver stores to the peripheral tissues. The RBP4-retinol complex interacts with transthyretin (TTR - transports thyroxine and retinol) which protects it from renal excretion. In addition to retinol, other endogenous and synthetic retinoids bind RBP4, including all-trans and 13-cis retinoic acid, retinyl acetate, N-(ethyl)retinamide, and fenretinide. This group also includes purpurin, a retinol-specific protein that plays a role in neural retina cell adhesion during development of the chicken retina; it also binds retinol and may participate in retinol transporter in the retina. This group belongs to the lipocalin/cytosolic fatty-acid binding protein family which have a large beta-barrel ligand-binding cavity. Lipocalins are mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules, as well as membrane bound-receptors. They participate in processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty-acid binding proteins, also bind hydrophobic ligands in a non-covalent, reversible manner, and have been implicated in intracellular uptake, transport and storage of hydrophobic ligands, regulation of lipid metabolism and sequestration of excess toxic fatty acids, as well as in signaling, gene expression, inflammation, cell growth and proliferation, and cancer development.


Pssm-ID: 381184  Cd Length: 171  Bit Score: 357.14  E-value: 2.86e-128
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1HBP_A        4 CRVSSFRVKENFDKARFAGTWYAMAKKDPEGLFLQDNIVAEFSVDENGHMSATAKGRVRLLNNWDVCADMVGTFTDTEDP 83
Cdd:cd00743   1 CRVSSFRVKENFDKARYAGTWYAMAKKDPEGLFLQDNIVAEFSVDENGTMTATAKGRVRLLNNWDVCADMVGTFTDTEDP 80
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1HBP_A       84 AKFKMKYWGVASFLQKGNDDHWIIDTDYETFAVQYSCRLLNLDGTCADSYSFVFARDPSGFSPEVQKIVRQRQEELCLAR 163
Cdd:cd00743  81 AKFKMKYWGVASYLQKGNDDHWVIDTDYDTYAITYSCRLLNLDGTCADSYSFVFSRDPNGLPPEVQKIVRQRQEELCLAR 160
                       170
                ....*....|.
1HBP_A      164 QYRLIPHNGYC 174
Cdd:cd00743 161 QYRLVVHNGYC 171
Lipocalin pfam00061
Lipocalin / cytosolic fatty-acid binding protein family; Lipocalins are transporters for small ...
21-159 1.21e-17

Lipocalin / cytosolic fatty-acid binding protein family; Lipocalins are transporters for small hydrophobic molecules, such as lipids, steroid hormones, bilins, and retinoids. The family also encompasses the enzyme prostaglandin D synthase (EC:5.3.99.2). Alignment subsumes both the lipocalin and fatty acid binding protein signatures from PROSITE. This is supported on structural and functional grounds. The structure is an eight-stranded beta barrel.


Pssm-ID: 395015  Cd Length: 143  Bit Score: 75.17  E-value: 1.21e-17
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1HBP_A         21 AGTWYAMAKKD----PEGLFLQDNIVAEFSVDENGHMSATAkgrVRLLNNWdvCADMVGTFTDTEDPAKFKMKYWGVAsf 96
Cdd:pfam00061   1 SGKWYLIASANfnelEEEMKALGVGFATIKVLENGNLPVTE---ITKEGGK--CKTVSVTFKKTEEPGKLGVEFDEYA-- 73
                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|...
1HBP_A         97 lqkGNDDHWIIDTDYETFAVQYSCrllNLDGTCADSYSFVFARDPSGfSPEVQKIVRQRQEEL 159
Cdd:pfam00061  74 ---GGRKVKVLTTDYDNYLIFYQK---GDKDGKTTIVRELYGRDPEL-SPELLEKFKKFLKEL 129
 
Name Accession Description Interval E-value
lipocalin_RBP_like cd00743
retinol-binding protein 4 and similar proteins; Retinol-Binding Protein 4 (RBP4) is a plasma ...
4-174 2.86e-128

retinol-binding protein 4 and similar proteins; Retinol-Binding Protein 4 (RBP4) is a plasma protein that transports retinol (vitamin A) from the liver stores to the peripheral tissues. The RBP4-retinol complex interacts with transthyretin (TTR - transports thyroxine and retinol) which protects it from renal excretion. In addition to retinol, other endogenous and synthetic retinoids bind RBP4, including all-trans and 13-cis retinoic acid, retinyl acetate, N-(ethyl)retinamide, and fenretinide. This group also includes purpurin, a retinol-specific protein that plays a role in neural retina cell adhesion during development of the chicken retina; it also binds retinol and may participate in retinol transporter in the retina. This group belongs to the lipocalin/cytosolic fatty-acid binding protein family which have a large beta-barrel ligand-binding cavity. Lipocalins are mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules, as well as membrane bound-receptors. They participate in processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty-acid binding proteins, also bind hydrophobic ligands in a non-covalent, reversible manner, and have been implicated in intracellular uptake, transport and storage of hydrophobic ligands, regulation of lipid metabolism and sequestration of excess toxic fatty acids, as well as in signaling, gene expression, inflammation, cell growth and proliferation, and cancer development.


Pssm-ID: 381184  Cd Length: 171  Bit Score: 357.14  E-value: 2.86e-128
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1HBP_A        4 CRVSSFRVKENFDKARFAGTWYAMAKKDPEGLFLQDNIVAEFSVDENGHMSATAKGRVRLLNNWDVCADMVGTFTDTEDP 83
Cdd:cd00743   1 CRVSSFRVKENFDKARYAGTWYAMAKKDPEGLFLQDNIVAEFSVDENGTMTATAKGRVRLLNNWDVCADMVGTFTDTEDP 80
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1HBP_A       84 AKFKMKYWGVASFLQKGNDDHWIIDTDYETFAVQYSCRLLNLDGTCADSYSFVFARDPSGFSPEVQKIVRQRQEELCLAR 163
Cdd:cd00743  81 AKFKMKYWGVASYLQKGNDDHWVIDTDYDTYAITYSCRLLNLDGTCADSYSFVFSRDPNGLPPEVQKIVRQRQEELCLAR 160
                       170
                ....*....|.
1HBP_A      164 QYRLIPHNGYC 174
Cdd:cd00743 161 QYRLVVHNGYC 171
lipocalin_FABP cd00301
lipocalin/cytosolic fatty acid-binding protein family; Lipocalins are diverse, mainly low ...
19-139 1.25e-22

lipocalin/cytosolic fatty acid-binding protein family; Lipocalins are diverse, mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules as well as membrane bound-receptors. They have a large beta-barrel ligand-binding cavity. Members include retinol-binding protein, retinoic acid-binding protein, complement protein C8 gamma, Can f 2, apolipoprotein D, extracellular fatty acid-binding protein, beta-lactoglobulin, oderant-binding protein, and bacterial lipocalin Blc. Lipocalins are involved in many important processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty acid-binding proteins also bind hydrophobic ligands in a non-covalent, reversible manner, and are involved in protection and shuttling of fatty acids within the cell, and in acquisition and removal of fatty acids from intracellular sites.


Pssm-ID: 381182  Cd Length: 109  Bit Score: 87.21  E-value: 1.25e-22
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1HBP_A       19 RFAGTWYAMAK-KDPEGLFLQDNIVAEFSVDENGHMSATAKGRVRllnnwDVCADMVGTFTDTEDPAKFKMKYWGvasfl 97
Cdd:cd00301   1 KFSGKWYEVASaSNAPEEDEGKCTTAEYTLEGNGNLKVTNSFVRD-----GVCKSITGTLKKTDGPGKFTVTYPG----- 70
                        90       100       110       120
                ....*....|....*....|....*....|....*....|..
1HBP_A       98 QKGNDDHWIIDTDYETFAVQYSCRLLNLDGTcadSYSFVFAR 139
Cdd:cd00301  71 YTGKNELYVLSTDYDNYAIVYSCKNLDGGHT---VVAWLLSR 109
Lipocalin pfam00061
Lipocalin / cytosolic fatty-acid binding protein family; Lipocalins are transporters for small ...
21-159 1.21e-17

Lipocalin / cytosolic fatty-acid binding protein family; Lipocalins are transporters for small hydrophobic molecules, such as lipids, steroid hormones, bilins, and retinoids. The family also encompasses the enzyme prostaglandin D synthase (EC:5.3.99.2). Alignment subsumes both the lipocalin and fatty acid binding protein signatures from PROSITE. This is supported on structural and functional grounds. The structure is an eight-stranded beta barrel.


Pssm-ID: 395015  Cd Length: 143  Bit Score: 75.17  E-value: 1.21e-17
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1HBP_A         21 AGTWYAMAKKD----PEGLFLQDNIVAEFSVDENGHMSATAkgrVRLLNNWdvCADMVGTFTDTEDPAKFKMKYWGVAsf 96
Cdd:pfam00061   1 SGKWYLIASANfnelEEEMKALGVGFATIKVLENGNLPVTE---ITKEGGK--CKTVSVTFKKTEEPGKLGVEFDEYA-- 73
                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|...
1HBP_A         97 lqkGNDDHWIIDTDYETFAVQYSCrllNLDGTCADSYSFVFARDPSGfSPEVQKIVRQRQEEL 159
Cdd:pfam00061  74 ---GGRKVKVLTTDYDNYLIFYQK---GDKDGKTTIVRELYGRDPEL-SPELLEKFKKFLKEL 129
lipocalin_apoD-like cd19437
apolipoprotein D and similar proteins; Human apolipoprotein D (ApoD) is a small glycoprotein ...
11-154 1.19e-14

apolipoprotein D and similar proteins; Human apolipoprotein D (ApoD) is a small glycoprotein associated with high density lipoproteins (HDL) in plasma. It appears promiscuous since it can bind hydrophobic ligands belonging to different lipid groups, with different shapes and biochemical properties; however, it exhibits specificity between very similar lipidic species. Some ligands, such as progesterone and arachidonic acid, bind to the ligand-binding pocket with high affinity, while others may interact with ApoD via its region of surface hydrophobicity. This hydrophobic surface cluster may facilitate its association with HDL particles and facilitate its insertion into cellular lipid membranes. Drosophila NLaz and Schistocerca Laz belong to this group, and share functional properties with human ApoD, including regulation of lifespan, lipid and carbohydrate metabolism control, and protection against oxidative stress or starvation. This group also includes Sandercyanin, a blue protein secreted in the skin mucus of blue forms of walleye, Sander vitreus. Walleye is an important golden yellow commercial and sport fish; the findings of blue walleye are recent. This group belongs to the lipocalin/cytosolic fatty-acid binding protein family which have a large beta-barrel ligand-binding cavity. Lipocalins are mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules, as well as membrane bound-receptors. They participate in processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty-acid binding proteins, also bind hydrophobic ligands in a non-covalent, reversible manner, and have been implicated in intracellular uptake, transport and storage of hydrophobic ligands, regulation of lipid metabolism and sequestration of excess toxic fatty acids, as well as in signaling, gene expression, inflammation, cell growth and proliferation, and cancer development.


Pssm-ID: 381212 [Multi-domain]  Cd Length: 160  Bit Score: 67.66  E-value: 1.19e-14
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1HBP_A       11 VKENFDKARFAGTWYAMAKkDPegLFLQDN---IVAEFSVDENGHMSATAKGrVRLLNNWDVCADMVGTFTDTEDPAKFK 87
Cdd:cd19437   9 VQEDFDVDKYLGRWYEIER-YP--APFEKGgdcVTANYSLNDDGTVRVVNSG-INLTDGSINTIEGSARCPDPNEPAKLG 84
                        90       100       110       120       130       140       150
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|.
1HBP_A       88 MKYwgvASFLQKGNddHWIIDTDYETFAVQYSC----RLLNLDgtcadsYSFVFARDPSgFSPEVQKIVRQ 154
Cdd:cd19437  85 VSF---PGFPPAGP--YWVLDTDYDNYAIVYSCtdvlGLFKVE------YAWILSRQRT-LSAETLTKAKE 143
lipocalin_Blc-like cd19438
bacterial lipocalin Blc, Arabidopsis thaliana temperature-induced lipocalin-1, and similar ...
13-159 4.99e-09

bacterial lipocalin Blc, Arabidopsis thaliana temperature-induced lipocalin-1, and similar proteins; Escherichia coli bacterial lipocalin (Blc, also known as YjeL) is an outer membrane lipoprotein involved in the storage or transport of lipids necessary for membrane maintenance under stressful conditions. Blc has a binding preference for lysophospholipids. This group includes eukaryotic lipocalins such as Arabidopsis thaliana temperature-induced lipocalin-1 (TIL) which is involved in thermotolerance, oxidative, salt, drought and high light stress tolerance, and is needed for seed longevity by ensuring polyunsaturated lipids integrity. This group belongs to the lipocalin/cytosolic fatty-acid binding protein family which have a large beta-barrel ligand-binding cavity. Lipocalins are mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules, as well as membrane bound-receptors. They participate in processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty-acid binding proteins, also bind hydrophobic ligands in a non-covalent, reversible manner, and have been implicated in intracellular uptake, transport and storage of hydrophobic ligands, regulation of lipid metabolism and sequestration of excess toxic fatty acids, as well as in signaling, gene expression, inflammation, cell growth and proliferation, and cancer development.


Pssm-ID: 381213  Cd Length: 143  Bit Score: 52.18  E-value: 4.99e-09
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1HBP_A       13 ENFDKARFAGTWYAMAKKDpegLFLQD---NIVAEFSVDENGHMSATAKGRVRLLNNWDVcADMVGTFTDTEDPAKFKMK 89
Cdd:cd19438   2 PNVDLDRYMGTWYEIARLP---NRFEKgcvNVTATYTLNDDGTISVVNRCRDGDEGKWKE-AEGKARVVDPSDNAKLKVS 77
                        90       100       110       120       130       140       150
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
1HBP_A       90 YWGVASFlqkgnDDHWII--DTDYETFAVQYSCRllnldgtcadSYSFVFARDPSgFSPEVQKIVRQRQEEL 159
Cdd:cd19438  78 FFGPPFY-----GDYWVLalDPDYQWALVGGPSR----------DYLWILSRTPQ-LSEETLQRLLEKAREL 133
lipocalin_beta-LG-like cd19416
beta-lactoglobulin and similar proteins; Beta-Lactoglobulin (beta-LG) is the major whey ...
10-114 3.60e-06

beta-lactoglobulin and similar proteins; Beta-Lactoglobulin (beta-LG) is the major whey protein of ruminant species and present in the milk of many other species, with a notable exception of human. It is the major allergen of bovine milk. Beta-LG has been shown to bind hydrophobic ligands such as curcumin, vitamin E or fatty acids, or hydrophilic such as vitamin B9. This group also includes human glycodelin (also known as placental protein 14, pregnancy-associated endometrial alpha-2 globulin, and progestagen-associated endometrial protein) which is involved in crucial biological processes such as reproduction and immune reaction. Four glycoforms of glycodelin have been identified in reproductive tissue that differ in glycosylation and biological activity. This group belongs to the lipocalin/cytosolic fatty-acid binding protein family which have a large beta-barrel ligand-binding cavity. Lipocalins are mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules, as well as membrane bound-receptors. They participate in processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty-acid binding proteins, also bind hydrophobic ligands in a non-covalent, reversible manner, and have been implicated in intracellular uptake, transport and storage of hydrophobic ligands, regulation of lipid metabolism and sequestration of excess toxic fatty acids, as well as in signaling, gene expression, inflammation, cell growth and proliferation, and cancer development.


Pssm-ID: 381191  Cd Length: 160  Bit Score: 44.83  E-value: 3.60e-06
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1HBP_A       10 RVKENFDKARFAGTWY--AMAKKDpegLFLQDNIVAEFSVDENGhMSATAKGRVR-LLNNW--DVCADMVGTFTDTEDPA 84
Cdd:cd19416   3 QTMKDLDVQKVAGTWYslAMAASD---ISLLDAQSAPLRVYIEE-LKPTPEGNLEiVLQKWenGRCAEKKLLAEKTKIPA 78
                        90       100       110
                ....*....|....*....|....*....|
1HBP_A       85 KFKMKYWGVASFLqkgnddhwIIDTDYETF 114
Cdd:cd19416  79 VFKINALNENKVL--------VLDTDYDSY 100
lipocalin_C8gamma cd19417
complement protein C8 gamma; Human complement protein C8 gamma, together with C8alpha and ...
12-118 1.52e-05

complement protein C8 gamma; Human complement protein C8 gamma, together with C8alpha and C8beta, form one of five components of the cytolytic membrane attack complex (MAC), a pore-like structure that assembles on bacterial membranes. C8alpha and C8gamma form a disulfide-linked heterodimer that is noncovalently associated with C8beta. MAC plays an important role in the defense against gram-negative bacteria and other pathogenic organisms. C8gamma belongs to the lipocalin/cytosolic fatty-acid binding protein family which have a large beta-barrel ligand-binding cavity. Lipocalins are mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules, as well as membrane bound-receptors. They participate in processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty-acid binding proteins, also bind hydrophobic ligands in a non-covalent, reversible manner, and have been implicated in intracellular uptake, transport and storage of hydrophobic ligands, regulation of lipid metabolism and sequestration of excess toxic fatty acids, as well as in signaling, gene expression, inflammation, cell growth and proliferation, and cancer development.


Pssm-ID: 381192  Cd Length: 162  Bit Score: 43.20  E-value: 1.52e-05
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1HBP_A       12 KENFDKARFAGTWYAMAKKDpEGLFLQDNivaEFSVDENG-HMSATAK----GRVRLLNNwdVCADMVGTFTDTEDPAKF 86
Cdd:cd19417   3 AQNFDIQQFSGKWYLVAVAS-ACRYLQES---GHKVEATVlTVAPPKTtvavSTFRKLNG--ICWEIKQEYGKTGTLGRF 76
                        90       100       110
                ....*....|....*....|....*....|..
1HBP_A       87 KMKYWGvasflQKGNDDHWIIDTDYETFAVQY 118
Cdd:cd19417  77 LLKARR-----PRGNTDIVVGETDYSSYAILY 103
lipocalin_Bla_g_4_Per_a_4 cd19440
major allergens Bla g 4 and Per a 4; Inhalant allergens from cockroaches are an important ...
14-120 1.29e-04

major allergens Bla g 4 and Per a 4; Inhalant allergens from cockroaches are an important cause of asthma. Bla g 4 and Per a 4 are male pheromone transport lipocalins, and both are major allergens. Bla g 4 is produced by Blattella germanica (German cockroach) and has been shown to bind two biogenic amines, tyramine and octopamine which may be its physiological ligands. Per a 4 is produced by Periplaneta americana (American cockroach) and may bind different ligands from Bla g 4 or have different modes for tyramine/octopamine binding. This group belongs to the lipocalin/cytosolic fatty-acid binding protein family which have a large beta-barrel ligand-binding cavity. Lipocalins are mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules, as well as membrane bound-receptors. They participate in processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty-acid binding proteins, also bind hydrophobic ligands in a non-covalent, reversible manner, and have been implicated in intracellular uptake, transport and storage of hydrophobic ligands, regulation of lipid metabolism and sequestration of excess toxic fatty acids, as well as in signaling, gene expression, inflammation, cell growth and proliferation, and cancer development.


Pssm-ID: 381215  Cd Length: 148  Bit Score: 40.17  E-value: 1.29e-04
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1HBP_A       14 NFDKARFAGTWYAMAKKDPEGLFLQDNIVAEFSVDENG----HMSAT---AKGRVRLLNNWDVcadmvgtftdtEDPAKF 86
Cdd:cd19440  10 GFDYTKYLGVWYEAFRTPNAHEEQYKCWIDRFSLDPEGpiavTSVAYdsrGKNRVTLTGTVPV-----------STGNKF 78
                        90       100       110
                ....*....|....*....|....*....|....*....
1HBP_A       87 KMKYwgvasflqkGNDD-----HWIIDTDYETFAVQYSC 120
Cdd:cd19440  79 DIDY---------GDDEawssqYWVLGTDYETYAILAGC 108
lipocalin_crustacyanin cd19436
crustacyanin Type I CRTC and Type II CRTA subunits; Alpha crustacyanin bound with the ...
106-150 2.46e-04

crustacyanin Type I CRTC and Type II CRTA subunits; Alpha crustacyanin bound with the carotenoid astaxanthisn (AXT) is the predominant cartenoprotein generating the slate-grey/blue color of the lobster carapace. Crustacyanin forms heterodimers (beta-crustacyanin) or complexes of 16 subunits (alpha-crustacyanin) assembled from beta-crustacyanin. Beta-crustacyanin is formed from one type I CRTC lipocalin subunit, and one type II CRTA lipocalin subunit (and two bound astaxanthin molecules). Homarus gammarus (European lobster) crustacyanin has of five distinct subunits evident on 6 M urea-PAGE gels: type I CRTC ( A1, C1, C2) and type II CRTA ( A2, A3). Homarus americanus crustacyanin consists of only two major subunits, namely type I CRTC (H1) and type II CRTA (H2), both of which behave like Ax subunits on a 6 M urea-PAGE gel. This family includes both type I CRTC subunit and type II CRTA subunits and belongs to the lipocalin/cytosolic fatty-acid binding protein family which have a large beta-barrel ligand-binding cavity. Lipocalins are mainly low molecular weight extracellular proteins that bind principally small hydrophobic ligands, and form covalent or non-covalent complexes with soluble macromolecules, as well as membrane bound-receptors. They participate in processes such as ligand transport, modulation of cell growth and metabolism, regulation of immune response, smell reception, tissue development and animal behavior. Cytosolic fatty-acid binding proteins, also bind hydrophobic ligands in a non-covalent, reversible manner, and have been implicated in intracellular uptake, transport and storage of hydrophobic ligands, regulation of lipid metabolism and sequestration of excess toxic fatty acids, as well as in signaling, gene expression, inflammation, cell growth and proliferation, and cancer development.


Pssm-ID: 381211  Cd Length: 169  Bit Score: 39.76  E-value: 2.46e-04
                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*
1HBP_A      106 IIDTDYETFAVQYSCrlLNLDGTCADsYSFVFARDPSGFSPEVQK 150
Cdd:cd19436 103 VIETDYENYSCVYSC--IDTDGYKSE-FGFVFSRSPQLAGPAVEK 144
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options: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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