Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
C [auth G]SCOP2B SuperfamilyTransducin (heterotrimeric G protein), gamma chain 8070798 3001771 SCOP2B (2022-06-29)
E [auth R]SCOP2B SuperfamilyL domain-like 8078984 3001010 SCOP2B (2022-06-29)
F [auth X]SCOP2B SuperfamilyCystine-knot cytokines 8038799 3000846 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ARase7xw5A1 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: RasECOD (1.6)
BANAPC4_WD40_3e7xw5B1 A: beta duplicates or obligate multimersX: beta-propeller-likeH: beta-propellerT: 7-bladedF: ANAPC4_WD40_3ECOD (1.6)
C [auth G]G-gammae7xw5G1 A: extended segmentsX: Transducin (heterotrimeric G protein), gamma chain (From Topology)H: Transducin (heterotrimeric G protein), gamma chain (From Topology)T: Transducin (heterotrimeric G protein), gamma chainF: G-gammaECOD (1.6)
D [auth N]V-set_12e7xw5N1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_12ECOD (1.6)
E [auth R]LRR_8_1e7xw5R1 A: beta duplicates or obligate multimersX: Single-stranded right-handed beta-helixH: Leucine-rich repeats (From Topology)T: Leucine-rich repeatsF: LRR_8_1ECOD (1.6)
E [auth R]7tm_1_3e7xw5R2 A: alpha bundlesX: Family A G protein-coupled receptor-like (From Topology)H: Family A G protein-coupled receptor-like (From Topology)T: Family A G protein-coupled receptor-likeF: 7tm_1_3ECOD (1.6)
F [auth X]Hormone_6e7xw5X1 A: few secondary structure elementsX: Cystine-knot cytokines (From Topology)H: Cystine-knot cytokines (From Topology)T: Cystine-knot cytokinesF: Hormone_6ECOD (1.6)
G [auth Y]Cys_knote7xw5Y1 A: few secondary structure elementsX: Cystine-knot cytokines (From Topology)H: Cystine-knot cytokines (From Topology)T: Cystine-knot cytokinesF: Cys_knotECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.40.50.300 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold P-loop containing nucleotide triphosphate hydrolasesCATH (utative)
B2.130.10.10 Mainly Beta 7 Propeller Methylamine Dehydrogenase Chain HCATH (utative)
D [auth N]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
D [auth N]Heavy ChainIGHV3 -guanine nucleotide-binding protein g(s) subunit alphaisoforms short | guanine nucleotide-binding protein g(i)/g(s)/g(t) subunitbeta-1 SAbDab (2025-10-10)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00503G-protein alpha subunit (G-alpha)G-protein alpha subunitG proteins couple receptors of extracellular signals to intracellular signaling pathways. The G protein alpha subunit binds guanyl nucleotide and is a weak GTPase. A set of residues that are unique to G-alpha as compared to its ancestor the Arf-like ...G proteins couple receptors of extracellular signals to intracellular signaling pathways. The G protein alpha subunit binds guanyl nucleotide and is a weak GTPase. A set of residues that are unique to G-alpha as compared to its ancestor the Arf-like family form a ring of residues centered on the nucleotide binding site [3]. A Ggamma is found fused to an inactive Galpha in the Dictyostelium protein gbqA [3].
Domain
PF00400WD domain, G-beta repeat (WD40)WD domain, G-beta repeat- Repeat
E [auth R]PF13306BspA type Leucine rich repeat region (6 copies) (LRR_5)BspA type Leucine rich repeat region (6 copies)- Repeat
E [auth R]PF000017 transmembrane receptor (rhodopsin family) (7tm_1)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, GC ...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 [1].
Domain
G [auth Y]PF00007Cystine-knot domain (Cys_knot)Cystine-knot domainThe family comprises glycoprotein hormones and the C-terminal domain of various extracellular proteins. It is believed to be involved in disulfide-linked dimerisation. Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
C [auth G]Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
D [auth N]Nanobody35---
E [auth R]Thyrotropin receptor
F [auth X]Glycoprotein hormones alpha chain
G [auth Y]Thyrotropin subunit beta

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR001019Guanine nucleotide binding protein (G-protein), alpha subunitFamily
IPR011025G protein alpha subunit, helical insertionHomologous Superfamily
IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily
IPR000367G-protein alpha subunit, group SFamily
IPR019775WD40 repeat, conserved siteConserved Site
IPR001632G-protein beta subunit, WD40 repeatsDomain
IPR020472PAC1/LIS1-like, WD-40 repeatRepeat
IPR015943WD40/YVTN repeat-like-containing domain superfamilyHomologous Superfamily
IPR016346G-protein subunit beta 1-5Family
IPR036322WD40-repeat-containing domain superfamilyHomologous Superfamily
IPR001680WD40 repeatRepeat
C [auth G]IPR001770G-protein, gamma subunitFamily
C [auth G]IPR015898G-protein, gamma subunit-like domainDomain
C [auth G]IPR036284G-protein gamma-like domain superfamilyHomologous Superfamily
E [auth R]IPR002274Thyrotropin receptorFamily
E [auth R]IPR000276G protein-coupled receptor, rhodopsin-likeFamily
E [auth R]IPR002131Glycoprotein hormone receptor familyFamily
E [auth R]IPR026906BspA-type LRR regionRepeat
E [auth R]IPR017452GPCR, rhodopsin-like, 7TMDomain
E [auth R]IPR032675Leucine-rich repeat domain superfamilyHomologous Superfamily
F [auth X]IPR000476Glycoprotein hormone alpha chainFamily
F [auth X]IPR029034Cystine-knot cytokineHomologous Superfamily
G [auth Y]IPR001545Gonadotropin, beta subunitFamily
G [auth Y]IPR018245Gonadotropin, beta subunit, conserved siteConserved Site
G [auth Y]IPR029034Cystine-knot cytokineHomologous Superfamily
G [auth Y]IPR006208Glycoprotein hormone subunit betaDomain

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
PharosP63092
PharosP62873
C [auth G]PharosP59768
E [auth R]PharosP16473
F [auth X]PharosP01215
G [auth Y]PharosP01222