SMTL ID : 4fz0.1

Crystal structure of acid-sensing ion channel in complex with psalmotoxin 1 at low pH

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.80 Å

Oligo State

hetero-3-3-mer

Ligands

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

CL.1: 4 residues within 4Å: Chain A: R.297, E.301, V.340 Chain B: K.199 Ligand excluded by PLIP CL.4: 4 residues within 4Å: Chain B: R.297, E.301, V.340 Chain C: K.199 Ligand excluded by PLIP CL.6: 4 residues within 4Å: Chain A: K.199 Chain C: R.297, E.301, V.340 Ligand excluded by PLIP

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

NAG.2: 2 residues within 4Å: Chain A: I.269, N.354 1 PLIP interactions: 1 interactions with chain A Hydrophobic interactions: A:I.269 NAG.3: 1 residues within 4Å: Chain A: N.381 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:N.381 NAG.5: 3 residues within 4Å: Chain B: D.241, I.269, N.354 4 PLIP interactions: 4 interactions with chain B Hydrophobic interactions: B:I.269 Hydrogen bonds: B:D.241, B:D.241, B:N.354 NAG.9: 3 residues within 4Å: Chain C: D.241, I.269, N.354 3 PLIP interactions: 3 interactions with chain C Hydrophobic interactions: C:I.269 Hydrogen bonds: C:D.241, C:N.354 NAG.10: 1 residues within 4Å: Chain C: N.381 1 PLIP interactions: 1 interactions with chain C Hydrogen bonds: C:N.381

2 x GOL: GLYCEROL(Non-functional Binders)

GOL.7: 4 residues within 4Å: Chain C: L.73, T.74, E.265, Y.403 3 PLIP interactions: 3 interactions with chain C Hydrogen bonds: C:T.74, C:T.74, C:E.265 GOL.8: 6 residues within 4Å: Chain C: F.140, N.141, M.142, Y.322, C.323, T.324 2 PLIP interactions: 2 interactions with chain C Hydrogen bonds: C:M.142, C:Y.322

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Baconguis, I. et al., Structural plasticity and dynamic selectivity of acid-sensing ion channel-spider toxin complexes. Nature (2012)

Release Date

2012-08-01

Peptides

Acid-sensing ion channel 1: ABC
Pi-theraphotoxin-Pc1a: DEF

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
M

E
N

F
O

Membrane

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

Pi-theraphotoxin-Pc1a

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