7F8V | pdb_00007f8v

Cryo-EM structure of the cholecystokinin receptor CCKBR in complex with gastrin-17 and Gi


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
E [auth R]7tm_1_1e7f8vR1 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_1ECOD (1.6)
CG-gammae7f8vC1 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)
BANAPC4_WD40_3e7f8vB1 A: beta duplicates or obligate multimersX: beta-propeller-likeH: beta-propellerT: 7-bladedF: ANAPC4_WD40_3ECOD (1.6)
ARase7f8vA1 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: RasECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
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
D [auth E]PF00918Gastrin/cholecystokinin family (Gastrin)Gastrin/cholecystokinin family- Family
PF00400WD domain, G-beta repeat (WD40)WD domain, G-beta repeat- Repeat
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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
E [auth R]Gastrin/cholecystokinin type B receptor
D [auth E]Gastrin-17
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
Guanine nucleotide-binding protein G(i) subunit alpha-2

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
E [auth R]PharosP32239
D [auth E]PharosP01350
PharosP59768
PharosP62873
PharosP04899

Protein Modification Annotation

Modified Residue(s)
ChainResidue(s)Description
D [auth E]NFA Parent Component: PHE

RESIDAA0094

PSI-MOD :  L-phenylalanine amide MOD:00103
D [auth E]PCA Parent Component: GLN

RESIDAA0094 , AA0031

PSI-MOD :  L-phenylalanine amide MOD:00103 , 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420