SMTL ID : 7sk1.1

TWIK1 in MSP1E3D1 Lipid Nanodisc at pH 5.5

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

homo-dimer

Ligands

3 x K: POTASSIUM ION(Non-covalent)

K.1: 10 residues within 4Å: Chain A: T.117, T.118, T.225, I.226 Chain B: T.117, T.118, T.225, I.226 Ligands: K.2, K.3 5 PLIP interactions: 3 interactions with chain B, 2 interactions with chain A Metal complexes: B:T.117, B:T.118, B:I.226, A:T.118, A:I.226 K.2: 9 residues within 4Å: Chain A: T.118, G.119, I.226, G.227 Chain B: T.118, G.119, I.226, G.227 Ligands: K.1 5 PLIP interactions: 3 interactions with chain B, 2 interactions with chain A Metal complexes: B:T.118, B:G.119, B:I.226, A:G.119, A:I.226 K.3: 5 residues within 4Å: Chain A: T.117, T.225 Chain B: T.117, T.225 Ligands: K.1 5 PLIP interactions: 3 interactions with chain A, 2 interactions with chain B Metal complexes: A:T.117, A:T.225, A:T.225, B:T.117, B:T.225

2 x OCT: N-OCTANE(Non-covalent)

OCT.4: 1 residues within 4Å: Chain A: V.156 1 PLIP interactions: 1 interactions with chain A Hydrophobic interactions: A:V.156 OCT.6: 1 residues within 4Å: Chain B: V.156 1 PLIP interactions: 1 interactions with chain B Hydrophobic interactions: B:V.156

2 x C14: TETRADECANE(Non-covalent)

C14.5: 5 residues within 4Å: Chain A: L.149, L.257, M.260 Chain B: V.139 Ligands: C14.7 3 PLIP interactions: 1 interactions with chain B, 2 interactions with chain A Hydrophobic interactions: B:V.139, A:L.149, A:L.257 C14.7: 9 residues within 4Å: Chain A: V.139, I.142 Chain B: S.116, L.149, F.220, T.225, L.257, M.260 Ligands: C14.5 5 PLIP interactions: 3 interactions with chain B, 2 interactions with chain A Hydrophobic interactions: B:L.149, B:F.220, B:L.257, A:V.139, A:I.142

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Turney, T.S. et al., Structural Basis for pH-gating of the K + channel TWIK1 at the selectivity filter. Nat Commun (2022)

Release Date

2021-11-24

Peptides

Potassium channel subfamily K member 1: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Membrane

We predict this structure to be a membrane protein.
Show / Hide

Potassium channel subfamily K member 1

Related Entries With Identical Sequence