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Conserved domains on  [gi|17568131|ref|NP_510432|]
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G-protein coupled receptors family 1 profile domain-containing protein [Caenorhabditis elegans]

Protein Classification

G-protein coupled receptor( domain architecture ID 11535993)

G-protein coupled receptor transmits physiological signals from the outside of the cell to the inside via G proteins by binding to an extracellular agonist, which induces conformational changes that lead to the activation of heterotrimeric G proteins, which then bind to and activate numerous downstream effector proteins

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
7tm_classA_rhodopsin-like cd00637
rhodopsin receptor-like class A family of the seven-transmembrane G protein-coupled receptor ...
21-268 2.65e-09

rhodopsin receptor-like class A family of the seven-transmembrane G protein-coupled receptor superfamily; Class A rhodopsin-like receptors constitute about 90% of all GPCRs. The class A GPCRs include the light-sensitive rhodopsin as well as receptors for biogenic amines, lipids, nucleotides, odorants, peptide hormones, and a variety of other ligands. All GPCRs have a common structural architecture comprising of seven-transmembrane (TM) alpha-helices interconnected by three extracellular and three intracellular loops. A general feature of GPCR signaling is agonist-induced conformational changes in the receptors, leading to activation of the heterotrimeric G proteins, which consist of the guanine nucleotide-binding G-alpha subunit and the dimeric G-beta-gamma subunits. The activated G proteins then bind to and activate numerous downstream effector proteins, which generate second messengers that mediate a broad range of cellular and physiological processes. Based on sequence similarity, GPCRs can be divided into six major classes: class A (rhodopsin-like family), class B (Methuselah-like, adhesion and secretin-like receptor family), class C (metabotropic glutamate receptor family), class D (fungal mating pheromone receptors), class E (cAMP receptor family), and class F (frizzled/smoothened receptor family). Nearly 800 human GPCR genes have been identified and are involved essentially in all major physiological processes. Approximately 40% of clinically marketed drugs mediate their effects through modulation of GPCR function for the treatment of a variety of human diseases including bacterial infections.


:

Pssm-ID: 410626 [Multi-domain]  Cd Length: 275  Bit Score: 57.30  E-value: 2.65e-09
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131  21 TIYSVIVFVGIILN---IYVVNKMSRLYKSdkdqfingTGIYLMSMAVCDavnLVLSCFEMLTYLLSITSSEQAA-SILC 96
Cdd:cd00637   3 VLYILIFVVGLVGNllvILVILRNRRLRTV--------TNYFILNLAVAD---LLVGLLVIPFSLVSLLLGRWWFgDALC 71
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131  97 KIAEFTLRCSYTYSMYCWLFMSGLRYLAVFSPIHYTTLW--RSPWHMVIPCFIVAIISNMYLLVAVKQENFQCILIIDEY 174
Cdd:cd00637  72 KLLGFLQSVSLLASILTLTAISVDRYLAIVHPLRYRRRFtrRRAKLLIALIWLLSLLLALPPLLGWGVYDYGGYCCCCLC 151
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131 175 STLYNSVDVFISTLLPVSFILALDLLVLC----FRPSRQQNDPLLQIVFHRLDEDTEKRKMITTRKFMLVTLLAVSLSTP 250
Cdd:cd00637 152 WPDLTLSKAYTIFLFVLLFLLPLLVIIVCyvriFRKLRRHRRRIRSSSSNSSRRRRRRRERKVTKTLLIVVVVFLLCWLP 231
                       250
                ....*....|....*...
gi 17568131 251 DGILRAIRPYIDGNVVFI 268
Cdd:cd00637 232 YFILLLLDVFGPDPSPLP 249
 
Name Accession Description Interval E-value
7tm_classA_rhodopsin-like cd00637
rhodopsin receptor-like class A family of the seven-transmembrane G protein-coupled receptor ...
21-268 2.65e-09

rhodopsin receptor-like class A family of the seven-transmembrane G protein-coupled receptor superfamily; Class A rhodopsin-like receptors constitute about 90% of all GPCRs. The class A GPCRs include the light-sensitive rhodopsin as well as receptors for biogenic amines, lipids, nucleotides, odorants, peptide hormones, and a variety of other ligands. All GPCRs have a common structural architecture comprising of seven-transmembrane (TM) alpha-helices interconnected by three extracellular and three intracellular loops. A general feature of GPCR signaling is agonist-induced conformational changes in the receptors, leading to activation of the heterotrimeric G proteins, which consist of the guanine nucleotide-binding G-alpha subunit and the dimeric G-beta-gamma subunits. The activated G proteins then bind to and activate numerous downstream effector proteins, which generate second messengers that mediate a broad range of cellular and physiological processes. Based on sequence similarity, GPCRs can be divided into six major classes: class A (rhodopsin-like family), class B (Methuselah-like, adhesion and secretin-like receptor family), class C (metabotropic glutamate receptor family), class D (fungal mating pheromone receptors), class E (cAMP receptor family), and class F (frizzled/smoothened receptor family). Nearly 800 human GPCR genes have been identified and are involved essentially in all major physiological processes. Approximately 40% of clinically marketed drugs mediate their effects through modulation of GPCR function for the treatment of a variety of human diseases including bacterial infections.


Pssm-ID: 410626 [Multi-domain]  Cd Length: 275  Bit Score: 57.30  E-value: 2.65e-09
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131  21 TIYSVIVFVGIILN---IYVVNKMSRLYKSdkdqfingTGIYLMSMAVCDavnLVLSCFEMLTYLLSITSSEQAA-SILC 96
Cdd:cd00637   3 VLYILIFVVGLVGNllvILVILRNRRLRTV--------TNYFILNLAVAD---LLVGLLVIPFSLVSLLLGRWWFgDALC 71
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131  97 KIAEFTLRCSYTYSMYCWLFMSGLRYLAVFSPIHYTTLW--RSPWHMVIPCFIVAIISNMYLLVAVKQENFQCILIIDEY 174
Cdd:cd00637  72 KLLGFLQSVSLLASILTLTAISVDRYLAIVHPLRYRRRFtrRRAKLLIALIWLLSLLLALPPLLGWGVYDYGGYCCCCLC 151
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131 175 STLYNSVDVFISTLLPVSFILALDLLVLC----FRPSRQQNDPLLQIVFHRLDEDTEKRKMITTRKFMLVTLLAVSLSTP 250
Cdd:cd00637 152 WPDLTLSKAYTIFLFVLLFLLPLLVIIVCyvriFRKLRRHRRRIRSSSSNSSRRRRRRRERKVTKTLLIVVVVFLLCWLP 231
                       250
                ....*....|....*...
gi 17568131 251 DGILRAIRPYIDGNVVFI 268
Cdd:cd00637 232 YFILLLLDVFGPDPSPLP 249
7tm_1 pfam00001
7 transmembrane receptor (rhodopsin family); This family contains, amongst other ...
58-195 1.11e-04

7 transmembrane receptor (rhodopsin family); This family contains, amongst other G-protein-coupled receptors (GCPRs), members of the opsin family, which have been considered to be typical members of the rhodopsin superfamily. They share several motifs, mainly the seven transmembrane helices, GCPRs of the rhodopsin superfamily. All opsins bind a chromophore, such as 11-cis-retinal. The function of most opsins other than the photoisomerases is split into two steps: light absorption and G-protein activation. Photoisomerases, on the other hand, are not coupled to G-proteins - they are thought to generate and supply the chromophore that is used by visual opsins.


Pssm-ID: 459624 [Multi-domain]  Cd Length: 256  Bit Score: 43.44  E-value: 1.11e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131    58 IYLMSMAVCDAVNLVLSCFEMLTYLLSiTSSEQAASILCKIAEFTLRCSYTYSMYCWLFMSGLRYLAVFSPIHYTTlWRS 137
Cdd:pfam00001  21 IFLLNLAVADLLFSLLTLPFWLVYYLN-HGDWPFGSALCKIVGALFVVNGYASILLLTAISIDRYLAIVHPLRYKR-RRT 98
                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131   138 PWHMVIPC-------FIVAIISNMYLLVAVKQEN--FQCILIIDEYSTLYNSVDVFISTL---LPVSFIL 195
Cdd:pfam00001  99 PRRAKVLIlviwvlaLLLSLPPLLFGWTLTVPEGnvTVCFIDFPEDLSKPVSYTLLISVLgflLPLLVIL 168
PHA03087 PHA03087
G protein-coupled chemokine receptor-like protein; Provisional
10-152 6.12e-03

G protein-coupled chemokine receptor-like protein; Provisional


Pssm-ID: 222976 [Multi-domain]  Cd Length: 335  Bit Score: 38.22  E-value: 6.12e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131   10 IGDDVMGTIIQTIYSVIVFVGIILNIYVvnkmsrLYKSDKDQFINGTGIYLMSMAVCDAVNLVLSCFEMLTYLLSITSse 89
Cdd:PHA03087  34 IGYDTNSTILIVVYSTIFFFGLVGNIIV------IYVLTKTKIKTPMDIYLLNLAVSDLLFVMTLPFQIYYYILFQWS-- 105
                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 17568131   90 qAASILCKIAEFTLRCSYTYSMYCWLFMSGLRYLAVFSPIHYTTLwRSPWHMVIPCFIVAIIS 152
Cdd:PHA03087 106 -FGEFACKIVSGLYYIGFYNSMNFITVMSVDRYIAIVHPVKSNKI-NTVKYGYIVSLVIWIIS 166
 
Name Accession Description Interval E-value
7tm_classA_rhodopsin-like cd00637
rhodopsin receptor-like class A family of the seven-transmembrane G protein-coupled receptor ...
21-268 2.65e-09

rhodopsin receptor-like class A family of the seven-transmembrane G protein-coupled receptor superfamily; Class A rhodopsin-like receptors constitute about 90% of all GPCRs. The class A GPCRs include the light-sensitive rhodopsin as well as receptors for biogenic amines, lipids, nucleotides, odorants, peptide hormones, and a variety of other ligands. All GPCRs have a common structural architecture comprising of seven-transmembrane (TM) alpha-helices interconnected by three extracellular and three intracellular loops. A general feature of GPCR signaling is agonist-induced conformational changes in the receptors, leading to activation of the heterotrimeric G proteins, which consist of the guanine nucleotide-binding G-alpha subunit and the dimeric G-beta-gamma subunits. The activated G proteins then bind to and activate numerous downstream effector proteins, which generate second messengers that mediate a broad range of cellular and physiological processes. Based on sequence similarity, GPCRs can be divided into six major classes: class A (rhodopsin-like family), class B (Methuselah-like, adhesion and secretin-like receptor family), class C (metabotropic glutamate receptor family), class D (fungal mating pheromone receptors), class E (cAMP receptor family), and class F (frizzled/smoothened receptor family). Nearly 800 human GPCR genes have been identified and are involved essentially in all major physiological processes. Approximately 40% of clinically marketed drugs mediate their effects through modulation of GPCR function for the treatment of a variety of human diseases including bacterial infections.


Pssm-ID: 410626 [Multi-domain]  Cd Length: 275  Bit Score: 57.30  E-value: 2.65e-09
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131  21 TIYSVIVFVGIILN---IYVVNKMSRLYKSdkdqfingTGIYLMSMAVCDavnLVLSCFEMLTYLLSITSSEQAA-SILC 96
Cdd:cd00637   3 VLYILIFVVGLVGNllvILVILRNRRLRTV--------TNYFILNLAVAD---LLVGLLVIPFSLVSLLLGRWWFgDALC 71
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131  97 KIAEFTLRCSYTYSMYCWLFMSGLRYLAVFSPIHYTTLW--RSPWHMVIPCFIVAIISNMYLLVAVKQENFQCILIIDEY 174
Cdd:cd00637  72 KLLGFLQSVSLLASILTLTAISVDRYLAIVHPLRYRRRFtrRRAKLLIALIWLLSLLLALPPLLGWGVYDYGGYCCCCLC 151
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131 175 STLYNSVDVFISTLLPVSFILALDLLVLC----FRPSRQQNDPLLQIVFHRLDEDTEKRKMITTRKFMLVTLLAVSLSTP 250
Cdd:cd00637 152 WPDLTLSKAYTIFLFVLLFLLPLLVIIVCyvriFRKLRRHRRRIRSSSSNSSRRRRRRRERKVTKTLLIVVVVFLLCWLP 231
                       250
                ....*....|....*...
gi 17568131 251 DGILRAIRPYIDGNVVFI 268
Cdd:cd00637 232 YFILLLLDVFGPDPSPLP 249
7tmA_FMRFamide_R-like cd14978
FMRFamide (Phe-Met-Arg-Phe) receptors and related proteins, member of the class A family of ...
18-273 4.08e-06

FMRFamide (Phe-Met-Arg-Phe) receptors and related proteins, member of the class A family of seven-transmembrane G protein-coupled receptors; This group includes Drosophila melanogaster G-protein coupled FMRFamide (Phe-Met-Arg-Phe-NH2) receptor DrmFMRFa-R and related invertebrate receptors, as well as the vertebrate proteins GPR139 and GPR142. DrmFMRFa-R binds with high affinity to FMRFamide and intrinsic FMRFamide-related peptides. FMRFamide is a neuropeptide from the family of FMRFamide-related peptides (FaRPs), which all containing a C-terminal RFamide (Arg-Phe-NH2) motif and have diverse functions in the central and peripheral nervous systems. FMRFamide is an important neuropeptide in many types of invertebrates such as insects, nematodes, molluscs, and worms. In invertebrates, the FMRFamide-related peptides are involved in the regulation of heart rate, blood pressure, gut motility, feeding behavior, and reproduction. On the other hand, in vertebrates such as mice, they play a role in the modulation of morphine-induced antinociception. Orphan receptors GPR139 and GPR142 are very closely related G protein-coupled receptors, but they have different expression patterns in the brain and in other tissues. These receptors couple to inhibitory G proteins and activate phospholipase C. Studies suggested that dimer formation may be required for their proper function. GPR142 is predominantly expressed in pancreatic beta-cells and mediates enhancement of glucose-stimulated insulin secretion, whereas GPR139 is mostly expressed in the brain and is suggested to play a role in the control of locomotor activity. Tryptophan and phenylalanine have been identified as putative endogenous ligands of GPR139.


Pssm-ID: 410630 [Multi-domain]  Cd Length: 299  Bit Score: 48.01  E-value: 4.08e-06
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131  18 IIQTIYSVIVFVGIILNIYVVNKMSRlyksdkDQFINGTGIYLMSMAVCDavnlVLSCFEMLTYLLSITSSEQAASILCK 97
Cdd:cd14978   2 LYGYVLPVICIFGIIGNILNLVVLTR------KSMRSSTNVYLAALAVSD----ILVLLSALPLFLLPYIADYSSSFLSY 71
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131  98 IAEFTLRCSY-------TYSMYCWLFMSGLRYLAVFSPIHYTTLW---RSPWHMVIPCFIVAIISNMYLLVAVKQENFQC 167
Cdd:cd14978  72 FYAYFLPYIYplantfqTASVWLTVALTVERYIAVCHPLKARTWCtprRARRVILIIIIFSLLLNLPRFFEYEVVECENC 151
                       170       180       190       200       210       220       230       240
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131 168 ILIIDEYSTL-------------YNSVDVFISTLLPVSFILALDLLVLCF--RPSRQQNDPLLQIVFHRLDEDTEKRkmi 232
Cdd:cd14978 152 NNNSYYYVIPtllrqnetyllkyYFWLYAIFVVLLPFILLLILNILLIRAlrKSKKRRRLLRRRRRLLSRSQRRERR--- 228
                       250       260       270       280
                ....*....|....*....|....*....|....*....|...
gi 17568131 233 TTRkfMLVTLLAVSLST--PDGILRAIRPYIDGNVVFILFQVF 273
Cdd:cd14978 229 TTI--MLIAVVIVFLICnlPAGILNILEAIFGESFLSPIYQLL 269
7tm_1 pfam00001
7 transmembrane receptor (rhodopsin family); This family contains, amongst other ...
58-195 1.11e-04

7 transmembrane receptor (rhodopsin family); This family contains, amongst other G-protein-coupled receptors (GCPRs), members of the opsin family, which have been considered to be typical members of the rhodopsin superfamily. They share several motifs, mainly the seven transmembrane helices, GCPRs of the rhodopsin superfamily. All opsins bind a chromophore, such as 11-cis-retinal. The function of most opsins other than the photoisomerases is split into two steps: light absorption and G-protein activation. Photoisomerases, on the other hand, are not coupled to G-proteins - they are thought to generate and supply the chromophore that is used by visual opsins.


Pssm-ID: 459624 [Multi-domain]  Cd Length: 256  Bit Score: 43.44  E-value: 1.11e-04
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131    58 IYLMSMAVCDAVNLVLSCFEMLTYLLSiTSSEQAASILCKIAEFTLRCSYTYSMYCWLFMSGLRYLAVFSPIHYTTlWRS 137
Cdd:pfam00001  21 IFLLNLAVADLLFSLLTLPFWLVYYLN-HGDWPFGSALCKIVGALFVVNGYASILLLTAISIDRYLAIVHPLRYKR-RRT 98
                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131   138 PWHMVIPC-------FIVAIISNMYLLVAVKQEN--FQCILIIDEYSTLYNSVDVFISTL---LPVSFIL 195
Cdd:pfam00001  99 PRRAKVLIlviwvlaLLLSLPPLLFGWTLTVPEGnvTVCFIDFPEDLSKPVSYTLLISVLgflLPLLVIL 168
7tmA_purinoceptor-like cd14982
purinoceptor and its related proteins, member of the class A family of seven-transmembrane G ...
21-204 3.19e-03

purinoceptor and its related proteins, member of the class A family of seven-transmembrane G protein-coupled receptors; Members of this subfamily include lysophosphatidic acid receptor, P2 purinoceptor, protease-activated receptor, platelet-activating factor receptor, Epstein-Barr virus induced gene 2, proton-sensing G protein-coupled receptors, GPR35, and GPR55, among others. All GPCRs have a common structural architecture comprising of seven-transmembrane (TM) alpha-helices interconnected by three extracellular and three intracellular loops. A general feature of GPCR signaling is agonist-induced conformational changes in the receptors, leading to activation of the heterotrimeric G proteins, which consist of the guanine nucleotide-binding G-alpha subunit and the dimeric G-beta-gamma subunits. The activated G proteins then bind to and activate numerous downstream effector proteins, which generate second messengers that mediate a broad range of cellular and physiological processes.


Pssm-ID: 341318 [Multi-domain]  Cd Length: 283  Bit Score: 38.79  E-value: 3.19e-03
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131  21 TIYSVIVFVGIILNIYVVNKMSRLYKSdkdqfINGTGIYLMSMAVCDAVnLVLSCFEMLTYLLSITSSEQAAsILCKIAE 100
Cdd:cd14982   5 IVYSLIFILGLLGNILALWVFLRKMKK-----RSPTTIYMINLALADLL-FVLTLPFRIYYYLNGGWWPFGD-FLCRLTG 77
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131 101 FTLRCSYTYSMYCWLFMSGLRYLAVFSPIHYTTLWRSPWHMVIPCFI----VAIISNMYLLVAVKQENFQCILIIDEYST 176
Cdd:cd14982  78 LLFYINMYGSILFLTCISVDRYLAVVHPLKSRRLRRKRYAVGVCAGVwilvLVASVPLLLLRSTIAKENNSTTCFEFLSE 157
                       170       180
                ....*....|....*....|....*...
gi 17568131 177 LYNSVDVFISTLLPVSFILALDLLVLCF 204
Cdd:cd14982 158 WLASAAPIVLIALVVGFLIPLLIILVCY 185
7TM_GPCR_Srx pfam10328
Serpentine type 7TM GPCR chemoreceptor Srx; Chemoreception is mediated in Caenorhabditis ...
25-188 3.85e-03

Serpentine type 7TM GPCR chemoreceptor Srx; Chemoreception is mediated in Caenorhabditis elegans by members of the seven-transmembrane G-protein-coupled receptor class (7TM GPCRs) of proteins which are of the serpentine type. Srx is part of the Srg superfamily of chemoreceptors. Chemoperception is one of the central senses of soil nematodes like C. elegans which are otherwise 'blind' and 'deaf'.


Pssm-ID: 431215  Cd Length: 262  Bit Score: 38.73  E-value: 3.85e-03
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131    25 VIVFVGIILNIYVVNKMSRLyKSDKDQFingtGIYLMSMAVCDAVNLVLSCFEM--LTYLLSITSSEQAASILCKIAEFT 102
Cdd:pfam10328   2 LISLIGLVANLLVFIAFLKL-PSLKNSF----GILCLSQAIGNAIICLIFLFYVvpMTLFQNSFLPEWLNSHIIGLIAMG 76
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131   103 LrcsYTYSMYCWLFMSGLRYLAVFSPIHYTTLWRSP--WHMVIPCFIVAIISNMYLLVAVK-------------QENFQC 167
Cdd:pfam10328  77 L---YEISPLSHLLIALNRFCAVFFPLKYEKIFSIKntKIIIIFIWIVSIIFCTVFYEPEGchfyynpetltwsFEDTPC 153
                         170       180
                  ....*....|....*....|.
gi 17568131   168 ILIIDEYSTLYNSVDVFISTL 188
Cdd:pfam10328 154 CDFITWYLDFYKNLSLVIITL 174
7tmA_Opioid_R-like cd14970
opioid receptors and related proteins, member of the class A family of seven-transmembrane G ...
17-202 5.38e-03

opioid receptors and related proteins, member of the class A family of seven-transmembrane G protein-coupled receptors; This group includes opioid receptors, somatostatin receptors, melanin-concentrating hormone receptors (MCHRs), and neuropeptides B/W receptors. Together they constitute the opioid receptor-like family, members of the class A G-protein coupled receptors. Opioid receptors are coupled to inhibitory G proteins of the G(i/o) family and are involved in regulating a variety of physiological functions such as pain, addiction, mood, stress, epileptic seizure, and obesity, among many others. G protein-coupled somatostatin receptors (SSTRs), which display strong sequence similarity with opioid receptors, binds somatostatin (somatotropin release inhibiting factor), a polypeptide hormone that regulates a wide variety of physiological functions such as neurotransmission, cell proliferation, contractility of smooth muscle cells, and endocrine signaling as well as inhibition of the release of many secondary hormones. MCHR binds melanin concentrating hormone and is presumably involved in the neuronal regulation of food intake. Despite strong homology with somatostatin receptors, MCHR does not appear to bind somatostatin. Neuropeptides B/W receptors are primarily expressed in the CNS and stimulate the cortisol secretion by activating the adenylate cyclase- and the phospholipase C-dependent signaling pathways.


Pssm-ID: 320101 [Multi-domain]  Cd Length: 282  Bit Score: 38.04  E-value: 5.38e-03
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131  17 TIIQTIYSVIVFVGIILN---IYVVNKMSRLYKSdkdqfingTGIYLMSMAVCDAVNLVLSCFEMLTYLLsitSSEQAAS 93
Cdd:cd14970   1 IVIPAVYSVVCVVGLTGNslvIYVILRYSKMKTV--------TNIYILNLAVADELFLLGLPFLATSYLL---GYWPFGE 69
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131  94 ILCKIA-------EFTlrcsytySMYCWLFMSGLRYLAVFSPIHYTTlWRSPWHMVIPCFIVAIISNMYLL--------V 158
Cdd:cd14970  70 VMCKIVlsvdaynMFT-------SIFCLTVMSVDRYLAVVHPVKSLR-FRTPRKAKLVSLCVWALSLVLGLpviifartL 141
                       170       180       190       200
                ....*....|....*....|....*....|....*....|....*...
gi 17568131 159 AVKQENFQCILIIDEYSTLYNSVDV----FISTLLPVSFILALDLLVL 202
Cdd:cd14970 142 QEEGGTISCNLQWPDPPDYWGRVFTiytfVLGFAVPLLVITVCYSLII 189
7tmA_SSTR cd15093
somatostatin receptors, member of the class A family of seven-transmembrane G protein-coupled ...
18-138 5.45e-03

somatostatin receptors, member of the class A family of seven-transmembrane G protein-coupled receptors; G protein-coupled somatostatin receptors (SSTRs) are composed of five distinct subtypes (SSTR1-5) that display strong sequence similarity with opioid receptors. All five receptor subtypes bind the natural somatostatin (somatotropin release inhibiting factor), a polypeptide hormone that regulates a wide variety of physiological functions such as neurotransmission, cell proliferation, contractility of smooth muscle cells, and endocrine signaling as well as inhibition of the release of many secondary hormones. They share common signaling cascades such as inhibition of adenylyl cyclase, activation of phosphotyrosine phosphatase activity, and G-protein-dependent regulation of MAPKs.


Pssm-ID: 320221 [Multi-domain]  Cd Length: 280  Bit Score: 38.21  E-value: 5.45e-03
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131  18 IIQTIYSVIVFVGIILNIYVVNKMSRLYKSDkdqfiNGTGIYLMSMAVCDAVNLVLSCFEMLTYLLSitsSEQAASILCK 97
Cdd:cd15093   2 LIPCIYAVVCLVGLCGNSLVIYVVLRYAKMK-----TVTNIYILNLAIADELFMLGLPFLAASNALR---HWPFGSVLCR 73
                        90       100       110       120
                ....*....|....*....|....*....|....*....|.
gi 17568131  98 IAEFTLRCSYTYSMYCWLFMSGLRYLAVFSPIHYTTlWRSP 138
Cdd:cd15093  74 LVLSVDGINMFTSIFCLTVMSVDRYLAVVHPIKSAR-WRRP 113
PHA03087 PHA03087
G protein-coupled chemokine receptor-like protein; Provisional
10-152 6.12e-03

G protein-coupled chemokine receptor-like protein; Provisional


Pssm-ID: 222976 [Multi-domain]  Cd Length: 335  Bit Score: 38.22  E-value: 6.12e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131   10 IGDDVMGTIIQTIYSVIVFVGIILNIYVvnkmsrLYKSDKDQFINGTGIYLMSMAVCDAVNLVLSCFEMLTYLLSITSse 89
Cdd:PHA03087  34 IGYDTNSTILIVVYSTIFFFGLVGNIIV------IYVLTKTKIKTPMDIYLLNLAVSDLLFVMTLPFQIYYYILFQWS-- 105
                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 17568131   90 qAASILCKIAEFTLRCSYTYSMYCWLFMSGLRYLAVFSPIHYTTLwRSPWHMVIPCFIVAIIS 152
Cdd:PHA03087 106 -FGEFACKIVSGLYYIGFYNSMNFITVMSVDRYIAIVHPVKSNKI-NTVKYGYIVSLVIWIIS 166
7tm_GPCRs cd14964
seven-transmembrane G protein-coupled receptor superfamily; This hierarchical evolutionary ...
22-143 8.45e-03

seven-transmembrane G protein-coupled receptor superfamily; This hierarchical evolutionary model represents the seven-transmembrane (7TM) receptors, often referred to as G protein-coupled receptors (GPCRs), which transmit physiological signals from the outside of the cell to the inside via G proteins. GPCRs constitute the largest known superfamily of transmembrane receptors across the three kingdoms of life that respond to a wide variety of extracellular stimuli including peptides, lipids, neurotransmitters, amino acids, hormones, and sensory stimuli such as light, smell and taste. All GPCRs share a common structural architecture comprising of seven-transmembrane (TM) alpha-helices interconnected by three extracellular and three intracellular loops. A general feature of GPCR signaling is agonist-induced conformational changes in the receptors, leading to activation of the heterotrimeric G proteins, which consist of the guanine nucleotide-binding G-alpha subunit and the dimeric G-beta-gamma subunits. The activated G proteins then bind to and activate numerous downstream effector proteins, which generate second messengers that mediate a broad range of cellular and physiological processes. However, some 7TM receptors, such as the type 1 microbial rhodopsins, do not activate G proteins. Based on sequence similarity, GPCRs can be divided into six major classes: class A (the rhodopsin-like family), class B (the Methuselah-like, adhesion and secretin-like receptor family), class C (the metabotropic glutamate receptor family), class D (the fungal mating pheromone receptors), class E (the cAMP receptor family), and class F (the frizzled/smoothened receptor family). Nearly 800 human GPCR genes have been identified and are involved essentially in all major physiological processes. Approximately 40% of clinically marketed drugs mediate their effects through modulation of GPCR function for the treatment of a variety of human diseases including bacterial infections.


Pssm-ID: 410628 [Multi-domain]  Cd Length: 267  Bit Score: 37.41  E-value: 8.45e-03
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131  22 IYSVIVFVGIILNIYVVNKMSRLYKSDKDqfingTGIYLMSMAVCDAVNLVlsCFEMLTYLLSITSSEQAASILCKIAEF 101
Cdd:cd14964   4 ILSLLTCLGLLGNLLVLLSLVRLRKRPRS-----TRLLLASLAACDLLASL--VVLVLFFLLGLTEASSRPQALCYLIYL 76
                        90       100       110       120
                ....*....|....*....|....*....|....*....|..
gi 17568131 102 TLRCSYTYSMYCWLFMSGLRYLAVFSPIHYTTlWRSPWHMVI 143
Cdd:cd14964  77 LWYGANLASIWTTLVLTYHRYFALCGPLKYTR-LSSPGKTRV 117
7tmA_SSTR1 cd15970
somatostatin receptor type 1, member of the class A family of seven-transmembrane G ...
18-129 8.87e-03

somatostatin receptor type 1, member of the class A family of seven-transmembrane G protein-coupled receptors; G protein-coupled somatostatin receptors (SSTRs) are composed of five distinct subtypes (SSTR1-5) that display strong sequence similarity with opioid receptors. All five receptor subtypes bind the natural somatostatin (somatotropin release inhibiting factor), a polypeptide hormone that regulates a wide variety of physiological functions such as neurotransmission, cell proliferation, contractility of smooth muscle cells, and endocrine signaling as well as inhibition of the release of many secondary hormones. SSTR1 is coupled to a Na/H exchanger, voltage-dependent calcium channels, and AMPA/kainate glutamate channels. SSTR1 is expressed in the normal human pituitary and in nearly half of all pituitary adenoma subtypes.


Pssm-ID: 320636 [Multi-domain]  Cd Length: 276  Bit Score: 37.58  E-value: 8.87e-03
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 17568131  18 IIQTIYSVIVFVGIILNIYVVNKMSRLYKSDkdqfiNGTGIYLMSMAVCDAVnLVLSCFEMLTYllSITSSEQAASILCK 97
Cdd:cd15970   2 LISFIYSVVCLVGLCGNSMVIYVILRYAKMK-----TATNIYILNLAIADEL-LMLSVPFLVTS--TLLRHWPFGSLLCR 73
                        90       100       110
                ....*....|....*....|....*....|..
gi 17568131  98 IAEFTLRCSYTYSMYCWLFMSGLRYLAVFSPI 129
Cdd:cd15970  74 LVLSVDAINMFTSIYCLTVLSIDRYIAVVHPI 105
 
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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