SMTL ID : 4hz3.1 (1 other biounit)

MthK pore crystallized in presence of TBSb

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.70 Å

Oligo State

homo-tetramer

Ligands

4 x K: POTASSIUM ION(Non-covalent)

K.1: 9 residues within 4Å: Chain A: G.51, Y.52 Chain B: G.51, Y.52 Chain C: G.51, Y.52 Chain D: G.51, Y.52 Ligands: K.2 5 PLIP interactions: 1 interactions with chain A, 2 interactions with chain C, 1 interactions with chain B, 1 interactions with chain D Metal complexes: A:Y.52, C:G.51, C:Y.52, B:Y.52, D:Y.52 K.2: 10 residues within 4Å: Chain A: V.50, G.51 Chain B: V.50, G.51 Chain C: V.50, G.51 Chain D: V.50, G.51 Ligands: K.1, K.3 5 PLIP interactions: 1 interactions with chain A, 2 interactions with chain D, 1 interactions with chain B, 1 interactions with chain C Metal complexes: A:G.51, D:V.50, D:G.51, B:V.50, C:G.51 K.3: 10 residues within 4Å: Chain A: T.49, V.50 Chain B: T.49, V.50 Chain C: T.49, V.50 Chain D: T.49, V.50 Ligands: K.2, K.4 5 PLIP interactions: 1 interactions with chain C, 1 interactions with chain A, 1 interactions with chain B, 2 interactions with chain D Metal complexes: C:T.49, A:V.50, B:V.50, D:T.49, D:V.50 K.4: 5 residues within 4Å: Chain A: T.49 Chain B: T.49 Chain C: T.49 Chain D: T.49 Ligands: K.3 5 PLIP interactions: 2 interactions with chain C, 1 interactions with chain B, 1 interactions with chain D, 1 interactions with chain A Metal complexes: C:T.49, C:T.49, B:T.49, D:T.49, A:T.49

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

HEZ.5: 2 residues within 4Å: Chain A: A.19, Y.23 No protein-ligand interaction detected (PLIP) HEZ.6: 3 residues within 4Å: Chain A: R.12, L.16, A.19 4 PLIP interactions: 4 interactions with chain A Hydrophobic interactions: A:L.16, A:A.19 Hydrogen bonds: A:R.12, A:R.12 HEZ.7: 4 residues within 4Å: Chain A: Y.64, C.67, T.68, V.71 2 PLIP interactions: 2 interactions with chain A Hydrophobic interactions: A:T.68, A:V.71 HEZ.8: 2 residues within 4Å: Chain B: I.22, Y.23 1 PLIP interactions: 1 interactions with chain B Hydrophobic interactions: B:I.22 HEZ.9: 3 residues within 4Å: Chain B: R.12, L.16, A.19 4 PLIP interactions: 4 interactions with chain B Hydrophobic interactions: B:L.16, B:A.19 Hydrogen bonds: B:R.12, B:R.12 HEZ.10: 5 residues within 4Å: Chain B: Y.64, C.67, T.68, V.71 Chain C: L.40 1 PLIP interactions: 1 interactions with chain B Hydrophobic interactions: B:T.68 HEZ.11: 4 residues within 4Å: Chain C: A.19, I.22, Y.23 Ligands: HEZ.12 1 PLIP interactions: 1 interactions with chain C Hydrogen bonds: C:Y.23 HEZ.12: 4 residues within 4Å: Chain C: R.12, L.16, A.19 Ligands: HEZ.11 3 PLIP interactions: 3 interactions with chain C Hydrophobic interactions: C:A.19 Hydrogen bonds: C:R.12, C:R.12 HEZ.13: 4 residues within 4Å: Chain C: Y.64, C.67, T.68, V.71 No protein-ligand interaction detected (PLIP) HEZ.14: 3 residues within 4Å: Chain D: A.19, I.22, Y.23 1 PLIP interactions: 1 interactions with chain D Hydrophobic interactions: D:I.22 HEZ.15: 3 residues within 4Å: Chain D: R.12, L.16, A.19 4 PLIP interactions: 4 interactions with chain D Hydrophobic interactions: D:L.16, D:A.19 Hydrogen bonds: D:R.12, D:R.12 HEZ.16: 5 residues within 4Å: Chain B: L.40, F.44 Chain D: Y.64, C.67, V.71 2 PLIP interactions: 2 interactions with chain D Hydrophobic interactions: D:Y.64, D:V.71

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Posson, D.J. et al., The voltage-dependent gate in MthK potassium channels is located at the selectivity filter. Nat.Struct.Mol.Biol. (2013)

Release Date

2012-12-26

Peptides

Calcium-gated potassium channel mthK: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
D

B
C

C
A

D
B

Membrane

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

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