SMTL ID : 7ezm.1

Cryo-EM structure of an activated Cholecystokinin A receptor (CCKAR)-Gq complex

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

hetero-1-1-1-1-1-mer

Ligands

1 x ASP- TYS- MET- GLY- TRP- MET- ASP- PHE- PHE: Cholecystokinin-8(Non-covalent)

ASP-TYS-MET-GLY-TRP-MET-ASP-PHE-PHE.1: 29 residues within 4Å: Chain C: F.97, N.98, P.101, K.105, D.106, F.107, T.118, G.122, V.125, Y.176, F.185, M.195, C.196, R.197, F.198, H.210, L.213, I.329, F.330, A.332, N.333, R.336, A.343, E.344, L.347, S.348, I.352, L.356, Y.360 24 PLIP interactions: 24 interactions with chain C Hydrophobic interactions: C:V.125, C:Y.176, C:L.213, C:I.329, C:F.330, C:R.336, C:E.344, C:L.347, C:I.352 Hydrogen bonds: C:N.98, C:C.196, C:R.197, C:N.333, C:R.336, C:R.336, C:S.348, C:S.348, C:Y.360, C:Y.360 Salt bridges: C:R.197, C:H.210, C:R.336 pi-Cation interactions: C:R.197, C:R.336

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Liu, Q. et al., Ligand recognition and G-protein coupling selectivity of cholecystokinin A receptor. Nat.Chem.Biol. (2021)

Release Date

2021-08-25

Peptides

fusion protein of Guanine nucleotide-binding protein G(i) subunit alpha-1 and Guanine nucleotide-binding protein G(q) subunit alpha-q: A
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1: B
Cholecystokinin receptor type A: C
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2: D
scFv16: E

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
D

D
G

E
H

Membrane

We predict this structure to be a membrane protein.
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fusion protein of Guanine nucleotide-binding protein G(i) subunit alpha-1 and Guanine nucleotide-binding protein G(q) subunit alpha-q

Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

Cholecystokinin receptor type A

Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

scFv16

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