SMTL ID : 8st1.1

The 3alpha2beta stoichiometry of human alpha4beta2 nicotinic acetylcholine receptor in complex with acetylcholine and calcium

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

hetero-3-2-2-2-mer

Ligands

2 x NAG- NAG- BMA: beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose

NAG-NAG-BMA.1: 14 residues within 4Å: Chain C: Q.141, N.143, T.145, R.186, N.188, T.200, D.202, I.204 Chain F: H.50, N.52, N.54, Y.56 Chain G: Y.121, Y.122 3 PLIP interactions: 2 interactions with chain C, 1 interactions with chain F Hydrogen bonds: C:R.186, F:N.54, C:R.186, C:R.186 NAG-NAG-BMA.2: 15 residues within 4Å: Chain E: Q.141, N.143, T.145, R.186, N.188, T.200, D.202, I.204 Chain H: H.50, N.52, N.54, Y.56, K.74 Chain I: Y.121, Y.122 3 PLIP interactions: 1 interactions with chain H, 2 interactions with chain E Hydrogen bonds: H:N.54, E:R.186, E:R.186

6 x NAG: 2-acetamido-2-deoxy-beta-D-glucopyranose(Post Translational Modification)

NAG.3: 2 residues within 4Å: Chain A: N.31, S.33 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:S.33, A:S.33 NAG.4: 4 residues within 4Å: Chain A: N.148, T.150, A.210, V.212 No protein-ligand interaction detected (PLIP) NAG.8: 2 residues within 4Å: Chain B: N.31, S.33 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:N.31, B:S.33 NAG.9: 5 residues within 4Å: Chain B: Q.146, N.148, T.150, A.210, V.212 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:N.148 NAG.13: 2 residues within 4Å: Chain D: N.31, S.33 1 PLIP interactions: 1 interactions with chain D Hydrogen bonds: D:S.33 NAG.14: 5 residues within 4Å: Chain D: Q.146, N.148, T.150, A.210, V.212 1 PLIP interactions: 1 interactions with chain D Hydrogen bonds: D:N.148

3 x ACH: ACETYLCHOLINE(Non-covalent)

ACH.5: 10 residues within 4Å: Chain A: Y.100, W.156, T.157, Y.197, C.199, C.200, Y.204 Chain B: W.62, H.116, T.126 6 PLIP interactions: 5 interactions with chain A, 1 interactions with chain B Hydrogen bonds: A:W.156 pi-Cation interactions: A:W.156, A:W.156, A:Y.197, A:Y.204, B:W.62 ACH.10: 13 residues within 4Å: Chain B: Y.100, S.155, W.156, T.157, Y.197, C.199, C.200, Y.204 Chain C: W.57, R.81, V.111, F.119, L.121 5 PLIP interactions: 1 interactions with chain C, 4 interactions with chain B Hydrophobic interactions: C:F.119 pi-Cation interactions: B:W.156, B:W.156, B:Y.197, B:Y.204 ACH.15: 13 residues within 4Å: Chain D: Y.100, S.155, W.156, T.157, Y.197, C.199, C.200, Y.204 Chain E: W.57, R.81, V.111, F.119, L.121 5 PLIP interactions: 2 interactions with chain E, 3 interactions with chain D Hydrophobic interactions: E:V.111, E:F.119 pi-Cation interactions: D:W.156, D:Y.197, D:Y.204

4 x CA: CALCIUM ION(Non-covalent)(Non-functional Binders)

CA.6: 4 residues within 4Å: Chain A: D.49, V.50, D.51, E.52 No protein-ligand interaction detected (PLIP) CA.7: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) CA.11: 2 residues within 4Å: Chain B: V.50, E.52 No protein-ligand interaction detected (PLIP) CA.16: 4 residues within 4Å: Chain D: D.49, V.50, D.51, E.52 1 PLIP interactions: 1 interactions with chain D Metal complexes: D:V.50

1 x NA: SODIUM ION(Non-functional Binders)

NA.12: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Mazzaferro, S. et al., Structural bases for stoichiometry-selective calcium potentiation of a neuronal nicotinic receptor. Br.J.Pharmacol. (2024)

Release Date

2024-02-07

Peptides

Neuronal acetylcholine receptor subunit alpha-4: ABD
Neuronal acetylcholine receptor subunit beta-2: CE
IgG1 Kappa Light Chain: FH
IgG1 Heavy Chain: GI

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

D
D

C
C

E
E

F
F

H
J

G
G

I
K

Membrane

We predict this structure to be a membrane protein.
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Neuronal acetylcholine receptor subunit alpha-4

Neuronal acetylcholine receptor subunit beta-2

IgG1 Kappa Light Chain

IgG1 Heavy Chain

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