SMTL ID : 4ntw.2 (1 other biounit)

Structure of acid-sensing ion channel in complex with snake toxin

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.07 Å

Oligo State

hetero-3-3-3-mer

Ligands

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

NAG.1: 3 residues within 4Å: Chain A: D.241, I.269, N.354 No protein-ligand interaction detected (PLIP) NAG.2: 1 residues within 4Å: Chain A: N.381 No protein-ligand interaction detected (PLIP) NAG.8: 3 residues within 4Å: Chain D: D.241, I.269, N.354 No protein-ligand interaction detected (PLIP) NAG.9: 1 residues within 4Å: Chain D: N.381 No protein-ligand interaction detected (PLIP) NAG.15: 3 residues within 4Å: Chain G: D.241, I.269, N.354 No protein-ligand interaction detected (PLIP) NAG.16: 1 residues within 4Å: Chain G: N.381 No protein-ligand interaction detected (PLIP)

3 x CL: CHLORIDE ION(Non-functional Binders)

CL.3: 3 residues within 4Å: Chain A: R.297, E.301 Chain G: K.199 Ligand excluded by PLIP CL.10: 3 residues within 4Å: Chain A: K.199 Chain D: R.297, E.301 Ligand excluded by PLIP CL.17: 3 residues within 4Å: Chain D: K.199 Chain G: R.297, E.301 Ligand excluded by PLIP

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

NA.4: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) NA.5: 2 residues within 4Å: Chain A: T.224, T.227 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:T.227 NA.7: 1 residues within 4Å: Chain C: F.68 6 PLIP interactions: 4 interactions with chain C, 2 interactions with chain B Water bridges: C:F.68, C:F.68, C:F.68, C:C.70, B:S.29, B:S.29 NA.11: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) NA.12: 2 residues within 4Å: Chain D: T.224, T.227 1 PLIP interactions: 1 interactions with chain D Hydrogen bonds: D:T.227 NA.14: 1 residues within 4Å: Chain F: F.68 3 PLIP interactions: 3 interactions with chain F Hydrogen bonds: F:F.68 Water bridges: F:F.68, F:C.70 NA.18: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) NA.19: 2 residues within 4Å: Chain G: T.224, T.227 1 PLIP interactions: 1 interactions with chain G Hydrogen bonds: G:T.224 NA.21: 1 residues within 4Å: Chain I: F.68 3 PLIP interactions: 3 interactions with chain I Hydrogen bonds: I:F.68 Water bridges: I:F.68, I:C.70

3 x P6G: HEXAETHYLENE GLYCOL(Non-functional Binders)

P6G.6: 17 residues within 4Å: Chain A: L.83, E.85, R.178, Y.179, D.225, T.227, S.228, D.337, E.341 Chain G: F.161, R.163, G.164, T.202, G.203, G.205, E.207, D.395 4 PLIP interactions: 3 interactions with chain A, 1 interactions with chain G Hydrogen bonds: A:E.85, A:S.228, G:G.164 Water bridges: A:Y.179 P6G.13: 17 residues within 4Å: Chain A: F.161, R.163, G.164, T.202, G.203, G.205, E.207, D.395 Chain D: L.83, E.85, R.178, Y.179, D.225, T.227, S.228, D.337, E.341 4 PLIP interactions: 3 interactions with chain D, 1 interactions with chain A Hydrogen bonds: D:E.85, D:S.228, A:G.164 Water bridges: D:Y.179 P6G.20: 17 residues within 4Å: Chain D: F.161, R.163, G.164, T.202, G.203, G.205, E.207, D.395 Chain G: L.83, E.85, R.178, Y.179, D.225, T.227, S.228, D.337, E.341 4 PLIP interactions: 3 interactions with chain G, 1 interactions with chain D Hydrogen bonds: G:E.85, G:S.228, D:G.164 Water bridges: G:Y.179

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Baconguis, I. et al., X-ray structure of Acid-sensing ion channel 1-snake toxin complex reveals open state of a na(+)-selective channel. Cell(Cambridge,Mass.) (2014)

Release Date

2014-02-19

Peptides

Acid-sensing ion channel 1: ADG
Neurotoxin MitTx-alpha: BEH
Basic phospholipase A2 homolog Tx-beta: CFI

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

D
A

G
A

B
B

E
B

H
B

C
C

F
C

I
C

Membrane

We predict this structure to be a membrane protein.
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Acid-sensing ion channel 1

Neurotoxin MitTx-alpha

Basic phospholipase A2 homolog Tx-beta

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