SMTL ID : 9c07.1

Structure of K2P13.1 (THIK1) S136P in detergent

Coordinates

PDB Format Compare

Method

ELECTRON MICROSCOPY

Oligo State

homo-dimer

Ligands

6 x D12: DODECANE(Non-covalent)(Non-functional Binders)

D12.1: 8 residues within 4Å: Chain A: T.98, F.101, Q.254, G.255, R.258, F.259 Ligands: HEX.6, OCT.7 1 PLIP interactions: 1 interactions with chain A Hydrophobic interactions: A:F.101 D12.2: 7 residues within 4Å: Chain A: N.17, F.20, L.21 Chain B: F.141, L.266 Ligands: OCT.18, EIC.31 No protein-ligand interaction detected (PLIP) D12.5: 10 residues within 4Å: Chain A: I.219, E.252, S.253, L.256, Y.257, F.259, A.260, V.263, F.264 Ligands: OCT.4 No protein-ligand interaction detected (PLIP) D12.15: 8 residues within 4Å: Chain A: F.141, L.266, C.270 Chain B: N.17, F.20, L.21 Ligands: EIC.14, OCT.16 No protein-ligand interaction detected (PLIP) D12.21: 8 residues within 4Å: Chain A: V.28 Chain B: T.98, F.101, Q.254, G.255, R.258 Ligands: HEX.25, EIC.31 No protein-ligand interaction detected (PLIP) D12.24: 9 residues within 4Å: Chain B: M.215, I.219, E.252, S.253, L.256, Y.257, F.259, A.260 Ligands: OCT.23 1 PLIP interactions: 1 interactions with chain B Hydrophobic interactions: B:A.260

8 x OCT: N-OCTANE(Non-functional Binders)

OCT.3: 5 residues within 4Å: Chain A: G.122, F.126, F.129 Chain B: L.41 Ligands: HEX.19 No protein-ligand interaction detected (PLIP) OCT.4: 5 residues within 4Å: Chain A: A.214, M.215, P.218, I.219 Ligands: D12.5 No protein-ligand interaction detected (PLIP) OCT.7: 4 residues within 4Å: Chain A: G.255, L.256, F.259 Ligands: D12.1 No protein-ligand interaction detected (PLIP) OCT.16: 5 residues within 4Å: Chain A: F.145, R.148, I.152 Chain B: N.17 Ligands: D12.15 No protein-ligand interaction detected (PLIP) OCT.18: 4 residues within 4Å: Chain A: N.17 Chain B: F.145, R.148 Ligands: D12.2 No protein-ligand interaction detected (PLIP) OCT.22: 5 residues within 4Å: Chain A: L.41 Chain B: G.122, F.126, F.129 Ligands: HEX.8 No protein-ligand interaction detected (PLIP) OCT.23: 6 residues within 4Å: Chain B: C.211, A.214, M.215, P.218, I.219 Ligands: D12.24 No protein-ligand interaction detected (PLIP) OCT.26: 3 residues within 4Å: Chain B: G.255, L.256, F.259 No protein-ligand interaction detected (PLIP)

14 x HEX: HEXANE(Non-functional Binders)(Non-covalent)

HEX.6: 2 residues within 4Å: Chain A: F.97 Ligands: D12.1 No protein-ligand interaction detected (PLIP) HEX.8: 6 residues within 4Å: Chain A: V.37, A.40, L.41 Ligands: HEX.10, HEX.12, OCT.22 No protein-ligand interaction detected (PLIP) HEX.9: 3 residues within 4Å: Chain A: F.225 Chain B: V.121, I.125 1 PLIP interactions: 1 interactions with chain A Hydrophobic interactions: A:F.225 HEX.10: 7 residues within 4Å: Chain A: G.33, A.36, V.37, A.40 Ligands: HEX.8, HEX.12, HEX.13 1 PLIP interactions: 1 interactions with chain A Hydrophobic interactions: A:A.36 HEX.11: 1 residues within 4Å: Ligands: HEX.13 No protein-ligand interaction detected (PLIP) HEX.12: 3 residues within 4Å: Ligands: HEX.8, HEX.10, HEX.13 No protein-ligand interaction detected (PLIP) HEX.13: 7 residues within 4Å: Chain A: L.29, L.32, G.33, A.36 Ligands: HEX.10, HEX.11, HEX.12 No protein-ligand interaction detected (PLIP) HEX.17: 4 residues within 4Å: Chain A: L.149, I.153, I.156, I.200 No protein-ligand interaction detected (PLIP) HEX.19: 5 residues within 4Å: Chain B: V.37, A.40, L.41 Ligands: OCT.3, HEX.28 No protein-ligand interaction detected (PLIP) HEX.25: 2 residues within 4Å: Chain B: F.97 Ligands: D12.21 No protein-ligand interaction detected (PLIP) HEX.27: 3 residues within 4Å: Chain A: V.121, I.125 Chain B: F.225 1 PLIP interactions: 1 interactions with chain B Hydrophobic interactions: B:F.225 HEX.28: 5 residues within 4Å: Chain B: G.33, A.36, V.37 Ligands: HEX.19, HEX.30 1 PLIP interactions: 1 interactions with chain B Hydrophobic interactions: B:V.37 HEX.29: 4 residues within 4Å: Chain B: L.149, I.153, I.156, I.200 No protein-ligand interaction detected (PLIP) HEX.30: 5 residues within 4Å: Chain B: L.29, L.32, G.33, A.36 Ligands: HEX.28 No protein-ligand interaction detected (PLIP)

2 x EIC: LINOLEIC ACID(Non-covalent)

EIC.14: 20 residues within 4Å: Chain A: R.92, F.101, Y.102, G.105, T.106, V.108, S.109, T.138, F.141, S.246, R.258, N.261, F.262, I.265, L.266 Chain B: A.24, I.27, V.28, L.31 Ligands: D12.15 8 PLIP interactions: 6 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:Y.102, A:Y.102, A:F.262, A:I.265, B:I.27, B:V.28 Hydrogen bonds: A:S.246 Salt bridges: A:R.92 EIC.31: 21 residues within 4Å: Chain A: A.24, I.27, V.28, L.31 Chain B: R.92, F.101, Y.102, G.105, T.106, V.108, S.109, T.138, F.141, S.246, R.258, N.261, F.262, I.265, L.266 Ligands: D12.2, D12.21 12 PLIP interactions: 10 interactions with chain B, 2 interactions with chain A Hydrophobic interactions: B:Y.102, B:F.141, B:F.262, B:F.262, B:I.265, B:L.266, A:I.27, A:V.28 Hydrogen bonds: B:S.246, B:S.246, B:N.261 Salt bridges: B:R.92

2 x R16: HEXADECANE(Non-covalent)

R16.20: 7 residues within 4Å: Chain A: L.26, I.27, Y.30, S.286, W.289 Chain B: V.133, S.137 2 PLIP interactions: 2 interactions with chain A Hydrophobic interactions: A:W.289, A:W.289 R16.32: 8 residues within 4Å: Chain A: V.133, S.137 Chain B: L.26, Y.30, I.283, S.286, W.289, I.290 2 PLIP interactions: 2 interactions with chain B Hydrophobic interactions: B:W.289, B:I.290

4 x K: POTASSIUM ION(Non-covalent)

K.33: 5 residues within 4Å: Chain A: T.110, T.237 Chain B: T.110, T.237 Ligands: K.36 4 PLIP interactions: 2 interactions with chain A, 2 interactions with chain B Metal complexes: A:T.110, A:T.237, B:T.110, B:T.237 K.34: 9 residues within 4Å: Chain A: G.112, F.113, G.239, F.240 Chain B: G.112, F.113, G.239, F.240 Ligands: K.35 4 PLIP interactions: 2 interactions with chain B, 2 interactions with chain A Metal complexes: B:G.112, B:G.239, A:G.112, A:G.239 K.35: 10 residues within 4Å: Chain A: I.111, G.112, I.238, G.239 Chain B: I.111, G.112, I.238, G.239 Ligands: K.34, K.36 4 PLIP interactions: 2 interactions with chain A, 2 interactions with chain B Metal complexes: A:I.111, A:I.238, B:I.111, B:I.238 K.36: 10 residues within 4Å: Chain A: T.110, I.111, T.237, I.238 Chain B: T.110, I.111, T.237, I.238 Ligands: K.33, K.35 4 PLIP interactions: 2 interactions with chain A, 2 interactions with chain B Metal complexes: A:T.110, A:T.237, B:T.110, B:T.237

Links

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Citation

Roy-Chowdhury, S. et al., Structure of the human K 2P 13.1 channel reveals a hydrophilic pore restriction and lipid cofactor site. Nat.Struct.Mol.Biol. (2025)

Release Date

2025-02-26

Peptides

Potassium channel subfamily K member 13: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
U

B
A

Membrane

We predict this structure to be a membrane protein.
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Potassium channel subfamily K member 13

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