SMTL ID : 9g9x.1

Structure of the human two pore domain potassium ion channel TASK-1 (K2P3.1)

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

homo-dimer

Ligands

4 x Y01: CHOLESTEROL HEMISUCCINATE(Non-covalent)

Y01.1: 10 residues within 4Å: Chain A: R.3, V.6, R.7, L.11, F.238, V.242, F.246 Chain B: P.119, L.120, V.123 10 PLIP interactions: 5 interactions with chain B, 5 interactions with chain A Hydrophobic interactions: B:P.119, B:P.119, B:L.120, B:V.123, B:V.123, A:L.11, A:F.238, A:F.246, A:F.246 Hydrogen bonds: A:R.7 Y01.2: 11 residues within 4Å: Chain A: R.79, F.80, A.81, F.84, L.214, Q.215, P.218, V.221, A.222, F.225 Chain B: F.16 11 PLIP interactions: 9 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:A.81, A:F.84, A:Q.215, A:P.218, A:V.221, A:A.222, A:F.225, B:F.16, B:F.16 Hydrogen bonds: A:F.80, A:A.81 Y01.6: 10 residues within 4Å: Chain A: P.119, L.120, V.123 Chain B: R.3, V.6, R.7, L.11, F.238, V.242, F.246 10 PLIP interactions: 5 interactions with chain B, 5 interactions with chain A Hydrophobic interactions: B:L.11, B:F.238, B:F.246, B:F.246, A:P.119, A:P.119, A:L.120, A:V.123, A:V.123 Hydrogen bonds: B:R.7 Y01.7: 11 residues within 4Å: Chain A: F.16 Chain B: R.79, F.80, A.81, F.84, L.214, Q.215, P.218, V.221, A.222, F.225 11 PLIP interactions: 9 interactions with chain B, 2 interactions with chain A Hydrophobic interactions: B:A.81, B:F.84, B:Q.215, B:P.218, B:V.221, B:A.222, B:F.225, A:F.16, A:F.16 Hydrogen bonds: B:F.80, B:A.81

3 x K: POTASSIUM ION(Non-covalent)

K.3: 8 residues within 4Å: Chain A: G.95, Y.96, G.201, F.202 Chain B: G.95, Y.96, G.201, F.202 4 PLIP interactions: 2 interactions with chain B, 2 interactions with chain A Metal complexes: B:Y.96, B:F.202, A:Y.96, A:F.202 K.4: 9 residues within 4Å: Chain A: T.93, I.94, T.199, I.200 Chain B: T.93, I.94, T.199, I.200 Ligands: K.5 4 PLIP interactions: 2 interactions with chain B, 2 interactions with chain A Metal complexes: B:I.94, B:I.200, A:I.94, A:I.200 K.5: 5 residues within 4Å: Chain A: T.93, T.199 Chain B: T.93, T.199 Ligands: K.4 2 PLIP interactions: 1 interactions with chain A, 1 interactions with chain B Metal complexes: A:T.93, B:T.93

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Hall, P.R. et al., Structures of TASK-1 and TASK-3 K2P channels provide insight into their gating and dysfunction in disease. Structure (2024)

Release Date

2024-12-18

Peptides

Potassium channel subfamily K member 3: 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 3

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