SMTL ID : 6u9p.1

Wild-type MthK pore in ~150 mM K+

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.65 Å

Oligo State

homo-tetramer

Ligands

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

K.1: 15 residues within 4Å: Chain A: G.44, Y.45 Chain B: G.44, Y.45 Chain C: G.44, Y.45 Chain D: G.44, Y.45 Ligands: K.2, K.7, K.8, K.13, K.14, K.19, K.20 Ligand excluded by PLIP K.2: 19 residues within 4Å: Chain A: V.43, G.44 Chain B: V.43, G.44 Chain C: V.43, G.44 Chain D: V.43, G.44 Ligands: K.1, K.3, K.7, K.8, K.9, K.13, K.14, K.15, K.19, K.20, K.21 Ligand excluded by PLIP K.3: 19 residues within 4Å: Chain A: T.42, V.43 Chain B: T.42, V.43 Chain C: T.42, V.43 Chain D: T.42, V.43 Ligands: K.2, K.4, K.8, K.9, K.10, K.14, K.15, K.16, K.20, K.21, K.22 Ligand excluded by PLIP K.4: 11 residues within 4Å: Chain A: T.42 Chain B: T.42 Chain C: T.42 Chain D: T.42 Ligands: K.3, K.9, K.10, K.15, K.16, K.21, K.22 Ligand excluded by PLIP K.5: 3 residues within 4Å: Ligands: K.11, K.17, K.23 Ligand excluded by PLIP K.7: 15 residues within 4Å: Chain A: G.44, Y.45 Chain B: G.44, Y.45 Chain C: G.44, Y.45 Chain D: G.44, Y.45 Ligands: K.1, K.2, K.8, K.13, K.14, K.19, K.20 Ligand excluded by PLIP K.8: 19 residues within 4Å: Chain A: V.43, G.44 Chain B: V.43, G.44 Chain C: V.43, G.44 Chain D: V.43, G.44 Ligands: K.1, K.2, K.3, K.7, K.9, K.13, K.14, K.15, K.19, K.20, K.21 Ligand excluded by PLIP K.9: 19 residues within 4Å: Chain A: T.42, V.43 Chain B: T.42, V.43 Chain C: T.42, V.43 Chain D: T.42, V.43 Ligands: K.2, K.3, K.4, K.8, K.10, K.14, K.15, K.16, K.20, K.21, K.22 Ligand excluded by PLIP K.10: 11 residues within 4Å: Chain A: T.42 Chain B: T.42 Chain C: T.42 Chain D: T.42 Ligands: K.3, K.4, K.9, K.15, K.16, K.21, K.22 Ligand excluded by PLIP K.11: 3 residues within 4Å: Ligands: K.5, K.17, K.23 Ligand excluded by PLIP K.13: 15 residues within 4Å: Chain A: G.44, Y.45 Chain B: G.44, Y.45 Chain C: G.44, Y.45 Chain D: G.44, Y.45 Ligands: K.1, K.2, K.7, K.8, K.14, K.19, K.20 Ligand excluded by PLIP K.14: 19 residues within 4Å: Chain A: V.43, G.44 Chain B: V.43, G.44 Chain C: V.43, G.44 Chain D: V.43, G.44 Ligands: K.1, K.2, K.3, K.7, K.8, K.9, K.13, K.15, K.19, K.20, K.21 Ligand excluded by PLIP K.15: 19 residues within 4Å: Chain A: T.42, V.43 Chain B: T.42, V.43 Chain C: T.42, V.43 Chain D: T.42, V.43 Ligands: K.2, K.3, K.4, K.8, K.9, K.10, K.14, K.16, K.20, K.21, K.22 Ligand excluded by PLIP K.16: 11 residues within 4Å: Chain A: T.42 Chain B: T.42 Chain C: T.42 Chain D: T.42 Ligands: K.3, K.4, K.9, K.10, K.15, K.21, K.22 Ligand excluded by PLIP K.17: 3 residues within 4Å: Ligands: K.5, K.11, K.23 Ligand excluded by PLIP K.19: 15 residues within 4Å: Chain A: G.44, Y.45 Chain B: G.44, Y.45 Chain C: G.44, Y.45 Chain D: G.44, Y.45 Ligands: K.1, K.2, K.7, K.8, K.13, K.14, K.20 Ligand excluded by PLIP K.20: 19 residues within 4Å: Chain A: V.43, G.44 Chain B: V.43, G.44 Chain C: V.43, G.44 Chain D: V.43, G.44 Ligands: K.1, K.2, K.3, K.7, K.8, K.9, K.13, K.14, K.15, K.19, K.21 Ligand excluded by PLIP K.21: 19 residues within 4Å: Chain A: T.42, V.43 Chain B: T.42, V.43 Chain C: T.42, V.43 Chain D: T.42, V.43 Ligands: K.2, K.3, K.4, K.8, K.9, K.10, K.14, K.15, K.16, K.20, K.22 Ligand excluded by PLIP K.22: 11 residues within 4Å: Chain A: T.42 Chain B: T.42 Chain C: T.42 Chain D: T.42 Ligands: K.3, K.4, K.9, K.10, K.15, K.16, K.21 Ligand excluded by PLIP K.23: 3 residues within 4Å: Ligands: K.5, K.11, K.17 Ligand excluded by PLIP

4 x HEZ: HEXANE-1,6-DIOL(Non-covalent)

HEZ.6: 3 residues within 4Å: Chain A: A.12, I.15, Y.16 1 PLIP interactions: 1 interactions with chain A Hydrophobic interactions: A:A.12 HEZ.12: 3 residues within 4Å: Chain B: A.12, I.15, Y.16 1 PLIP interactions: 1 interactions with chain B Hydrophobic interactions: B:A.12 HEZ.18: 3 residues within 4Å: Chain C: A.12, I.15, Y.16 1 PLIP interactions: 1 interactions with chain C Hydrophobic interactions: C:A.12 HEZ.24: 3 residues within 4Å: Chain D: A.12, I.15, Y.16 1 PLIP interactions: 1 interactions with chain D Hydrophobic interactions: D:A.12

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Boiteux, C. et al., Selectivity filter ion binding affinity determines inactivation in a potassium channel. Proc.Natl.Acad.Sci.USA (2020)

Release Date

2020-11-04

Peptides

Calcium-gated potassium channel MthK: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

C
A

D
A

Membrane

We predict this structure to be a membrane protein.
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Calcium-gated potassium channel MthK

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