Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
E [auth G]SCOP2B SuperfamilyTransducin (heterotrimeric G protein), gamma chain 8070798 3001771 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
C [auth A]Rase7kh0A1 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: RasECOD (1.6)
F [auth S]V-sete7kh0S2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-setECOD (1.6)
F [auth S]V-set_12e7kh0S1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_12ECOD (1.6)
A [auth R]7tm_1_3e7kh0R1 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)
BANAPC4_WD40_3e7kh0B1 A: beta duplicates or obligate multimersX: beta-propeller-likeH: beta-propellerT: 7-bladedF: ANAPC4_WD40_3ECOD (1.6)
E [auth G]G-gammae7kh0G1 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)
G [auth N]V-set_12e7kh0N1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_12ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
B2.130.10.10 Mainly Beta 7 Propeller Methylamine Dehydrogenase Chain HCATH (utative)
G [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
G [auth N]Heavy ChainIGHV3 -guanine nucleotide-binding protein g(i) subunit alpha-3,isoform gnas-2 of guanine nucleotide-binding protein g(s) subunit alpha isoforms short fusion | guanine nucleotide-binding protein g(i)/g(s)/g(t) subunitbeta-1 SAbDab (2025-09-26)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
C [auth A]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
D [auth L]PF00220Neurohypophysial hormones, N-terminal Domain (Hormone_4)Neurohypophysial hormones, N-terminal Domain- Family
A [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
PF00400WD domain, G-beta repeat (WD40)WD domain, G-beta repeat- Repeat
E [auth G]PF00631GGL domain (G-gamma)GGL domainG-protein gamma like domains (GGL) are found in the gamma subunit of the heterotrimeric G protein complex and in regulators of G protein signaling (RGS) proteins [1]. It is also found fused to an inactive Galpha in the Dictyostelium protein gbqA [2] ...G-protein gamma like domains (GGL) are found in the gamma subunit of the heterotrimeric G protein complex and in regulators of G protein signaling (RGS) proteins [1]. It is also found fused to an inactive Galpha in the Dictyostelium protein gbqA [2]. G-gamma likely shares a common origin with the helical N-terminal unit of G-beta [2]. All organisms that posses a G-beta possess a G-gamma [2].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
C [auth A]Guanine nucleotide-binding protein G(i) subunit alpha-3, Isoform Gnas-2 of Guanine nucleotide-binding protein G(s) subunit alpha isoforms short fusion
D [auth L]Arg-vasopressin
F [auth S]Single Fab chain (scFv16)---
A [auth R]Vasopressin V2 receptor
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
E [auth G]Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
G [auth N]Nanobody 35---

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
C [auth A]IPR001019Guanine nucleotide binding protein (G-protein), alpha subunitFamily
C [auth A]IPR011025G protein alpha subunit, helical insertionHomologous Superfamily
C [auth A]IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily
C [auth A]IPR001408G-protein alpha subunit, group IFamily
C [auth A]IPR001019Guanine nucleotide binding protein (G-protein), alpha subunitFamily
C [auth A]IPR011025G protein alpha subunit, helical insertionHomologous Superfamily
C [auth A]IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily
C [auth A]IPR000367G-protein alpha subunit, group SFamily
D [auth L]IPR036387Neurohypophysial hormone domain superfamilyHomologous Superfamily
D [auth L]IPR000981Neurohypophysial hormoneFamily
D [auth L]IPR022423Neurohypophysial hormone, conserved siteConserved Site
A [auth R]IPR000161Vasopressin V2 receptorFamily
A [auth R]IPR000276G protein-coupled receptor, rhodopsin-likeFamily
A [auth R]IPR017452GPCR, rhodopsin-like, 7TMDomain
A [auth R]IPR001817Vasopressin receptorFamily
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
E [auth G]IPR001770G-protein, gamma subunitFamily
E [auth G]IPR015898G-protein, gamma subunit-like domainDomain
E [auth G]IPR036284G-protein gamma-like domain superfamilyHomologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
C [auth A]PharosP63092
D [auth L]PharosP01185
A [auth R]PharosP30518
PharosP62873
E [auth G]PharosP59768

Protein Modification Annotation

Modified Residue(s)
ChainResidue(s)Description
D [auth L]NH2 RESIDAA0081 , AA0083 , AA0084 , AA0086 , AA0087 , AA0088 , AA0090 , AA0091 , AA0092 , AA0093 , AA0095 , AA0096 , AA0097 , AA0098 , AA0099 , AA0100

PSI-MOD :  L-alanine amide MOD:00090 , L-asparagine amide MOD:00092 , L-aspartic acid 1-amide MOD:00093 , L-glutamine amide MOD:00095 , L-glutamic acid 1-amide MOD:00096 , glycine amide MOD:00097 , L-isoleucine amide MOD:00099 , L-leucine amide MOD:00100 , L-lysine amide MOD:00101 , L-methionine amide MOD:00102 , L-proline amide MOD:00104 , L-serine amide MOD:00105 , L-threonine amide MOD:00106 , L-tryptophan amide MOD:00107 , L-tyrosine amide MOD:00108 , L-valine amide MOD:00109