SMTL ID : 4l76.1 (2 other biounits)

Ca2+-bound E212Q mutant MthK RCK domain

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.99 Å

Oligo State

homo-dimer

Ligands

4 x CA: CALCIUM ION(Non-covalent)

CA.1: 4 residues within 4Å: Chain A: S.18, D.78, E.104, Q.106 3 PLIP interactions: 3 interactions with chain A Metal complexes: A:D.78, A:D.78, A:E.104 CA.2: 4 residues within 4Å: Chain A: R.156, G.184, E.220 Chain B: D.199 5 PLIP interactions: 2 interactions with chain B, 3 interactions with chain A Metal complexes: B:D.199, B:D.199, A:G.184, A:E.220, A:E.220 CA.3: 3 residues within 4Å: Chain B: D.78, E.104, Q.106 3 PLIP interactions: 3 interactions with chain B Metal complexes: B:D.78, B:D.78, B:E.104 CA.4: 4 residues within 4Å: Chain A: D.199 Chain B: R.156, G.184, E.220 4 PLIP interactions: 3 interactions with chain B, 1 interactions with chain A Metal complexes: B:G.184, B:E.220, B:E.220, A:D.199

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

NA.5: 3 residues within 4Å: Chain B: R.70, G.71, D.96 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:G.71, B:D.96

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Smith, F.J. et al., Structural basis of allosteric interactions among Ca(2+)-binding sites in a K(+) channel RCK domain. Nat Commun (2013)

Release Date

2013-10-23

Peptides

Calcium-gated potassium channel MthK: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Calcium-gated potassium channel MthK

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