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

Crystal structure of the human two pore domain potassium ion channel K2P1 (TWIK-1)

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 3.40 Å

Oligo State

homo-dimer

Ligands

2 x UND: UNDECANE(Non-covalent)

UND.1: 2 residues within 4Å: Chain B: V.129 Ligands: UND.7 1 PLIP interactions: 1 interactions with chain B Hydrophobic interactions: B:V.129 UND.7: 2 residues within 4Å: Chain A: V.129 Ligands: UND.1 1 PLIP interactions: 1 interactions with chain A Hydrophobic interactions: A:V.129

5 x K: POTASSIUM ION(Non-covalent)(Non-functional Binders)

K.2: 9 residues within 4Å: Chain A: G.109, Y.110, G.217, L.218 Chain B: G.109, Y.110, G.217, L.218 Ligands: K.3 5 PLIP interactions: 2 interactions with chain A, 3 interactions with chain B Metal complexes: A:G.109, A:Y.110, B:G.109, B:Y.110, B:L.218 K.3: 10 residues within 4Å: Chain A: T.108, G.109, I.216, G.217 Chain B: T.108, G.109, I.216, G.217 Ligands: K.2, K.4 5 PLIP interactions: 3 interactions with chain B, 2 interactions with chain A Metal complexes: B:T.108, B:G.109, B:G.217, A:T.108, A:G.217 K.4: 10 residues within 4Å: Chain A: T.107, T.108, T.215, I.216 Chain B: T.107, T.108, T.215, I.216 Ligands: K.3, K.5 5 PLIP interactions: 2 interactions with chain B, 3 interactions with chain A Metal complexes: B:T.108, B:T.215, A:T.107, A:T.108, A:T.215 K.5: 5 residues within 4Å: Chain A: T.107, T.215 Chain B: T.107, T.215 Ligands: K.4 3 PLIP interactions: 2 interactions with chain B, 1 interactions with chain A Metal complexes: B:T.107, B:T.215, A:T.215 K.6: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Miller, A.N. et al., Crystal structure of the human two-pore domain potassium channel K2P1. Science (2012)

Release Date

2012-02-08

Peptides

Potassium channel subfamily K member 1: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
C

B
D

Membrane

We predict this structure to be a membrane protein.
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Potassium channel subfamily K member 1

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