9IK9 | pdb_00009ik9

Cryo-EM Structure of SST analogs bond SSTR1-Gi complex


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyRas-like P-loop GTPases 8056779 3002022 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyTransducin (heterotrimeric G protein), gamma chain 8070798 3001771 SCOP2B (2022-06-29)

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
E [auth D]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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Guanine nucleotide-binding protein G(i) subunit alpha-1
(4J2)(DCY)(DTY)(DTR)K(DVA)(DCY)(ALO)(NH2)---
E [auth D]Somatostatin receptor type 1
D [auth E]scFv16---
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

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
PharosP63096
E [auth D]PharosP30872
PharosP59768
PharosP62873

Protein Modification Annotation

Modified Residue(s)
ChainResidue(s)Description
4J2
ALO Parent Component: THR

DCY
DTR RESIDAA0198

PSI-MOD :  D-tryptophan MOD:00205
DTY RESIDAA0198

DVA RESIDAA0198 , AA0200

PSI-MOD :  D-tryptophan MOD:00205 , D-valine MOD:00705
NH2 RESIDAA0198 , AA0200 , AA0081 , AA0083 , AA0084 , AA0086 , AA0087 , AA0088 , AA0090 , AA0091 , AA0092 , AA0093 , AA0095 , AA0096 , AA0097 , AA0098 , AA0099 , AA0100

PSI-MOD :  D-tryptophan MOD:00205 , D-valine MOD:00705 , 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