SMTL ID : 7tcp.1

Structure of Xenopus KCNQ1-CaM

Coordinates

PDB Format

Method

ELECTRON MICROSCOPY

Oligo State

hetero-4-4-mer

Ligands

12 x CA: CALCIUM ION(Non-covalent)

CA.1: 5 residues within 4Å: Chain B: D.23, D.25, T.27, T.29, E.32 3 PLIP interactions: 3 interactions with chain B Metal complexes: B:D.25, B:T.29, B:E.32 CA.2: 5 residues within 4Å: Chain B: D.57, N.61, T.63, D.65, E.68 3 PLIP interactions: 3 interactions with chain B Metal complexes: B:T.63, B:E.68, B:E.68 CA.3: 5 residues within 4Å: Chain B: D.132, D.134, Q.136, V.137, N.138 5 PLIP interactions: 5 interactions with chain B Metal complexes: B:D.132, B:D.132, B:D.134, B:D.134, B:Q.136 CA.4: 5 residues within 4Å: Chain D: D.23, D.25, T.27, T.29, E.32 3 PLIP interactions: 3 interactions with chain D Metal complexes: D:D.25, D:T.29, D:E.32 CA.5: 5 residues within 4Å: Chain D: D.57, N.61, T.63, D.65, E.68 3 PLIP interactions: 3 interactions with chain D Metal complexes: D:T.63, D:E.68, D:E.68 CA.6: 5 residues within 4Å: Chain D: D.132, D.134, Q.136, V.137, N.138 5 PLIP interactions: 5 interactions with chain D Metal complexes: D:D.132, D:D.132, D:D.134, D:D.134, D:Q.136 CA.7: 5 residues within 4Å: Chain F: D.23, D.25, T.27, T.29, E.32 3 PLIP interactions: 3 interactions with chain F Metal complexes: F:D.25, F:T.29, F:E.32 CA.8: 5 residues within 4Å: Chain F: D.57, N.61, T.63, D.65, E.68 3 PLIP interactions: 3 interactions with chain F Metal complexes: F:T.63, F:E.68, F:E.68 CA.9: 5 residues within 4Å: Chain F: D.132, D.134, Q.136, V.137, N.138 5 PLIP interactions: 5 interactions with chain F Metal complexes: F:D.132, F:D.132, F:D.134, F:D.134, F:Q.136 CA.10: 5 residues within 4Å: Chain H: D.23, D.25, T.27, T.29, E.32 3 PLIP interactions: 3 interactions with chain H Metal complexes: H:D.25, H:T.29, H:E.32 CA.11: 5 residues within 4Å: Chain H: D.57, N.61, T.63, D.65, E.68 3 PLIP interactions: 3 interactions with chain H Metal complexes: H:T.63, H:E.68, H:E.68 CA.12: 5 residues within 4Å: Chain H: D.132, D.134, Q.136, V.137, N.138 5 PLIP interactions: 5 interactions with chain H Metal complexes: H:D.132, H:D.132, H:D.134, H:D.134, H:Q.136

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Willegems, K. et al., Structural and electrophysiological basis for the modulation of KCNQ1 channel currents by ML277. Nat Commun (2022)

Release Date

2022-07-06

Peptides

Potassium voltage-gated channel subfamily KQT member 1: ACEG
Calmodulin-1: BDFH

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

C
E

E
G

G
C

B
B

D
F

F
H

H
D

Membrane

We predict this structure to be a membrane protein.
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Potassium voltage-gated channel subfamily KQT member 1

Calmodulin-1

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