SMTL ID : 9mel.1

Structure of the human TWIK-2 potassium channel in complex with pimozide

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY 3.17 Å

Oligo State

homo-dimer

Ligands

3 x K: POTASSIUM ION(Non-covalent)

K.1: 9 residues within 4Å: Chain A: V.107, G.108, I.215, G.216 Chain B: V.107, G.108, Y.109, I.215, G.216 4 PLIP interactions: 2 interactions with chain B, 2 interactions with chain A Metal complexes: B:G.108, B:G.216, A:G.108, A:G.216 K.2: 9 residues within 4Å: Chain A: T.106, V.107, T.214, I.215 Chain B: T.106, V.107, T.214, I.215 Ligands: K.3 5 PLIP interactions: 3 interactions with chain A, 2 interactions with chain B Metal complexes: A:V.107, A:T.214, A:I.215, B:V.107, B:T.214 K.3: 5 residues within 4Å: Chain A: T.106, T.214 Chain B: T.106, T.214 Ligands: K.2 4 PLIP interactions: 2 interactions with chain A, 2 interactions with chain B Metal complexes: A:T.106, A:T.214, B:T.106, B:T.214

1 x 1II: 3-[1-[4,4-bis(4-fluorophenyl)butyl]piperidin-4-yl]-1~{H}-benzimidazol-2-one(Non-covalent)

1II.4: 16 residues within 4Å: Chain A: T.106, V.131, M.135, L.212, T.214, L.246, M.249 Chain B: T.106, M.135, L.138, S.213, T.214, L.246, M.249, V.250, L.253 11 PLIP interactions: 4 interactions with chain A, 7 interactions with chain B Hydrophobic interactions: A:T.106, A:V.131, A:L.246, A:M.249, B:T.214, B:L.246, B:M.249, B:V.250, B:L.253 Hydrogen bonds: B:T.106, B:T.214

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Khanra, N.K. et al., Structure of the human TWIK-2 potassium channel and its inhibition by pimozide. Proc.Natl.Acad.Sci.USA (2025)

Release Date

2025-04-23

Peptides

Potassium channel subfamily K member 6: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Membrane

We predict this structure to be a membrane protein.
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Potassium channel subfamily K member 6

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