Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyGalpha insert domain-like 8056777 3000669 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyRas-like P-loop GTPases 8019719 3002022 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyRas-like P-loop GTPases 8019719 3002022 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyWD40 repeat-like 8042849 3001694 SCOP2B (2022-06-29)
C [auth G]SCOP2B SuperfamilyTransducin (heterotrimeric G protein), gamma chain 8070796 3001771 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AG-alphae1gp2A1 A: alpha arraysX: Transducin (alpha subunit), insertion domain (From Topology)H: Transducin (alpha subunit), insertion domain (From Topology)T: Transducin (alpha subunit), insertion domainF: G-alphaECOD (1.6)
ARase1gp2A2 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_3e1gp2B1 A: beta duplicates or obligate multimersX: beta-propeller-likeH: beta-propellerT: 7-bladedF: ANAPC4_WD40_3ECOD (1.6)
C [auth G]G-gammae1gp2G1 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)

Domain Annotation: CATH CATH Database Homepage

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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
G PROTEIN GI ALPHA 1
G PROTEIN GI BETA 1
C [auth G]G PROTEIN GI GAMMA 2