SMTL ID : 3rqw.2 (1 other biounit)

Crystal structure of acetylcholine bound to a prokaryotic pentameric ligand-gated ion channel, ELIC

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.91 Å

Oligo State

homo-pentamer

Ligands

5 x ACH: ACETYLCHOLINE(Non-covalent)

ACH.1: 11 residues within 4Å: Chain A: F.19, Y.38, N.103 Chain B: E.77, I.79, E.131, P.132, F.133, Y.175, L.178, F.188 6 PLIP interactions: 3 interactions with chain B, 3 interactions with chain A Salt bridges: B:E.77, B:E.131 pi-Cation interactions: B:F.188 Hydrophobic interactions: A:F.19, A:Y.38 Hydrogen bonds: A:N.103 ACH.7: 11 residues within 4Å: Chain B: F.19, Y.38, N.103 Chain C: E.77, I.79, E.131, P.132, F.133, Y.175, L.178, F.188 6 PLIP interactions: 3 interactions with chain C, 3 interactions with chain B Salt bridges: C:E.77, C:E.131 pi-Cation interactions: C:F.188 Hydrophobic interactions: B:F.19, B:Y.38 Hydrogen bonds: B:N.103 ACH.13: 11 residues within 4Å: Chain C: F.19, Y.38, N.103 Chain D: E.77, I.79, E.131, P.132, F.133, Y.175, L.178, F.188 6 PLIP interactions: 3 interactions with chain D, 3 interactions with chain C Salt bridges: D:E.77, D:E.131 pi-Cation interactions: D:F.188 Hydrophobic interactions: C:F.19, C:Y.38 Hydrogen bonds: C:N.103 ACH.16: 10 residues within 4Å: Chain D: F.19, Y.38, N.103 Chain E: I.79, E.131, P.132, F.133, Y.175, L.178, F.188 6 PLIP interactions: 3 interactions with chain D, 3 interactions with chain E Hydrophobic interactions: D:F.19, D:Y.38 Hydrogen bonds: D:N.103 Salt bridges: E:E.77, E:E.131 pi-Cation interactions: E:F.188 ACH.23: 10 residues within 4Å: Chain A: E.77, E.131, P.132, F.133, Y.175, L.178, F.188 Chain E: F.19, Y.38, N.103 6 PLIP interactions: 3 interactions with chain E, 3 interactions with chain A Hydrophobic interactions: E:F.19, E:Y.38 Hydrogen bonds: E:N.103 Salt bridges: A:E.77, A:E.131 pi-Cation interactions: A:F.188

4 x MES: 2-(N-MORPHOLINO)-ETHANESULFONIC ACID(Non-covalent)

MES.2: 3 residues within 4Å: Chain A: W.206 Chain B: T.259, Q.264 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:Q.264 MES.8: 3 residues within 4Å: Chain B: W.206 Chain C: T.259, Q.264 2 PLIP interactions: 2 interactions with chain C Hydrogen bonds: C:T.259, C:Q.264 MES.17: 3 residues within 4Å: Chain D: W.206 Chain E: T.259, Q.264 2 PLIP interactions: 2 interactions with chain E Hydrogen bonds: E:T.259, E:Q.264 MES.24: 3 residues within 4Å: Chain A: T.259, Q.264 Chain E: W.206 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:Q.264

16 x GOL: GLYCEROL(Non-functional Binders)

GOL.3: 6 residues within 4Å: Chain A: P.74, A.75, L.76, K.90, Y.102 Ligands: GOL.4 Ligand excluded by PLIP GOL.4: 6 residues within 4Å: Chain A: I.39, L.76, F.78, T.87, Y.102 Ligands: GOL.3 Ligand excluded by PLIP GOL.5: 5 residues within 4Å: Chain A: S.84, P.85 Chain E: T.87, G.88, N.89 Ligand excluded by PLIP GOL.6: 5 residues within 4Å: Chain A: P.11, N.136, N.137, Q.138, E.187 Ligand excluded by PLIP GOL.9: 4 residues within 4Å: Chain B: G.88, N.89 Chain C: S.84 Ligands: GOL.15 Ligand excluded by PLIP GOL.10: 5 residues within 4Å: Chain A: N.60 Chain B: V.73, P.74, A.75, K.90 Ligand excluded by PLIP GOL.11: 4 residues within 4Å: Chain B: K.34, S.84, L.107, S.109 Ligand excluded by PLIP GOL.12: 5 residues within 4Å: Chain B: P.11, N.136, N.137, Q.138, Q.185 Ligand excluded by PLIP GOL.14: 6 residues within 4Å: Chain C: P.11, N.136, N.137, Q.138, Q.185, E.187 Ligand excluded by PLIP GOL.15: 10 residues within 4Å: Chain B: D.36, G.88, N.89, R.105 Chain C: E.77, V.81, G.83, S.84, P.85 Ligands: GOL.9 Ligand excluded by PLIP GOL.18: 3 residues within 4Å: Chain C: W.206 Chain D: T.259, Q.264 Ligand excluded by PLIP GOL.19: 6 residues within 4Å: Chain C: N.60 Chain D: V.73, A.75, K.90, Y.102 Ligands: GOL.20 Ligand excluded by PLIP GOL.20: 4 residues within 4Å: Chain D: P.74, L.76, Y.102 Ligands: GOL.19 Ligand excluded by PLIP GOL.21: 8 residues within 4Å: Chain D: K.34, V.82, G.83, S.84, P.85, L.107, G.108, S.109 Ligand excluded by PLIP GOL.22: 5 residues within 4Å: Chain D: P.11, N.136, N.137, Q.138, E.187 Ligand excluded by PLIP GOL.25: 5 residues within 4Å: Chain E: P.11, N.136, N.137, Q.138, E.187 Ligand excluded by PLIP

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Pan, J. et al., Structure of the pentameric ligand-gated ion channel ELIC cocrystallized with its competitive antagonist acetylcholine. Nat Commun (2012)

Release Date

2012-03-07

Peptides

ELIC Pentameric Ligand Gated Ion Channel from Erwinia Chrysanthemi: ABCDE

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
F

B
G

C
H

D
I

E
J

Membrane

We predict this structure to be a membrane protein.
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ELIC Pentameric Ligand Gated Ion Channel from Erwinia Chrysanthemi

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