SMTL ID : 3lde.1

High resolution open MthK pore structure crystallized in 100 mM K+ and further soaked in 100 mM Na+.

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.21 Å

Oligo State

homo-tetramer

Ligands

16 x NA: SODIUM ION(Non-functional Binders)

NA.1: 7 residues within 4Å: Chain A: Y.45 Chain B: Y.45 Chain C: Y.45 Chain D: Y.45 Ligands: NA.5, NA.9, NA.13 Ligand excluded by PLIP NA.2: 15 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: NA.3, NA.6, NA.7, NA.10, NA.11, NA.14, NA.15 Ligand excluded by PLIP NA.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: NA.2, NA.4, NA.6, NA.7, NA.8, NA.10, NA.11, NA.12, NA.14, NA.15, NA.16 Ligand excluded by PLIP NA.4: 11 residues within 4Å: Chain A: T.42 Chain B: T.42 Chain C: T.42 Chain D: T.42 Ligands: NA.3, NA.7, NA.8, NA.11, NA.12, NA.15, NA.16 Ligand excluded by PLIP NA.5: 7 residues within 4Å: Chain A: Y.45 Chain B: Y.45 Chain C: Y.45 Chain D: Y.45 Ligands: NA.1, NA.9, NA.13 Ligand excluded by PLIP NA.6: 15 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: NA.2, NA.3, NA.7, NA.10, NA.11, NA.14, NA.15 Ligand excluded by PLIP NA.7: 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: NA.2, NA.3, NA.4, NA.6, NA.8, NA.10, NA.11, NA.12, NA.14, NA.15, NA.16 Ligand excluded by PLIP NA.8: 11 residues within 4Å: Chain A: T.42 Chain B: T.42 Chain C: T.42 Chain D: T.42 Ligands: NA.3, NA.4, NA.7, NA.11, NA.12, NA.15, NA.16 Ligand excluded by PLIP NA.9: 7 residues within 4Å: Chain A: Y.45 Chain B: Y.45 Chain C: Y.45 Chain D: Y.45 Ligands: NA.1, NA.5, NA.13 Ligand excluded by PLIP NA.10: 15 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: NA.2, NA.3, NA.6, NA.7, NA.11, NA.14, NA.15 Ligand excluded by PLIP NA.11: 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: NA.2, NA.3, NA.4, NA.6, NA.7, NA.8, NA.10, NA.12, NA.14, NA.15, NA.16 Ligand excluded by PLIP NA.12: 11 residues within 4Å: Chain A: T.42 Chain B: T.42 Chain C: T.42 Chain D: T.42 Ligands: NA.3, NA.4, NA.7, NA.8, NA.11, NA.15, NA.16 Ligand excluded by PLIP NA.13: 7 residues within 4Å: Chain A: Y.45 Chain B: Y.45 Chain C: Y.45 Chain D: Y.45 Ligands: NA.1, NA.5, NA.9 Ligand excluded by PLIP NA.14: 15 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: NA.2, NA.3, NA.6, NA.7, NA.10, NA.11, NA.15 Ligand excluded by PLIP NA.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: NA.2, NA.3, NA.4, NA.6, NA.7, NA.8, NA.10, NA.11, NA.12, NA.14, NA.16 Ligand excluded by PLIP NA.16: 11 residues within 4Å: Chain A: T.42 Chain B: T.42 Chain C: T.42 Chain D: T.42 Ligands: NA.3, NA.4, NA.7, NA.8, NA.11, NA.12, NA.15 Ligand excluded by PLIP

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Ye, S. et al., Novel insights into K(+) selectivity from high-resolution structures of an open K(+) channel pore. Nat.Struct.Mol.Biol. (2010)

Release Date

2010-08-11

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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