SMTL ID : 6n5w.1

Crystal structure of the Ca2+/CaM complex with independent peptides of Kv7.4 (KCNQ4) A & B domains

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.15 Å

Oligo State

hetero-1-1-1-mer

Ligands

2 x CA: CALCIUM ION(Non-covalent)

CA.1: 5 residues within 4Å: Chain C: D.21, D.23, D.25, T.27, E.32 5 PLIP interactions: 4 interactions with chain C, 1 Ligand-Water interactions Metal complexes: C:D.25, C:T.27, C:E.32, C:E.32, H2O.1 CA.2: 5 residues within 4Å: Chain C: D.57, D.59, N.61, T.63, E.68 5 PLIP interactions: 5 interactions with chain C Metal complexes: C:D.57, C:D.59, C:T.63, C:E.68, C:E.68

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Archer, C.R. et al., A mutually induced conformational fit underlies Ca2+-directed interactions between calmodulin and the proximal C terminus of KCNQ4 K+channels. J. Biol. Chem. (2019)

Release Date

2019-03-13

Peptides

Potassium voltage-gated channel subfamily KQT member 4: A
Potassium voltage-gated channel subfamily KQT member 4: B
Calmodulin-1: C

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

Potassium voltage-gated channel subfamily KQT member 4

Potassium voltage-gated channel subfamily KQT member 4

Calmodulin-1

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