SMTL ID : 6cno.1

Cryo-EM structure of the human SK4/calmodulin channel complex in the Ca2+ bound state II

Coordinates

PDB Format

Method

ELECTRON MICROSCOPY 4.70 Å

Oligo State

hetero-4-4-mer

Ligands

12 x CA: CALCIUM ION(Non-covalent)

CA.1: 5 residues within 4Å: Chain E: D.21, D.23, D.25, T.27, E.32 5 PLIP interactions: 5 interactions with chain E Metal complexes: E:D.21, E:D.23, E:D.25, E:T.27, E:E.32 CA.2: 5 residues within 4Å: Chain E: D.57, D.59, N.61, T.63, E.68 5 PLIP interactions: 5 interactions with chain E Metal complexes: E:D.57, E:D.59, E:T.63, E:E.68, E:E.68 CA.3: 6 residues within 4Å: Chain E: D.94, D.96, N.98, Y.100, I.101, E.105 5 PLIP interactions: 5 interactions with chain E Metal complexes: E:D.94, E:D.96, E:Y.100, E:E.105, E:E.105 CA.4: 5 residues within 4Å: Chain F: D.21, D.23, D.25, T.27, E.32 5 PLIP interactions: 5 interactions with chain F Metal complexes: F:D.21, F:D.23, F:D.25, F:T.27, F:E.32 CA.5: 5 residues within 4Å: Chain F: D.57, D.59, N.61, T.63, E.68 5 PLIP interactions: 5 interactions with chain F Metal complexes: F:D.57, F:D.59, F:T.63, F:E.68, F:E.68 CA.6: 6 residues within 4Å: Chain F: D.94, D.96, N.98, Y.100, I.101, E.105 5 PLIP interactions: 5 interactions with chain F Metal complexes: F:D.94, F:D.96, F:Y.100, F:E.105, F:E.105 CA.7: 5 residues within 4Å: Chain G: D.21, D.23, D.25, T.27, E.32 5 PLIP interactions: 5 interactions with chain G Metal complexes: G:D.21, G:D.23, G:D.25, G:T.27, G:E.32 CA.8: 5 residues within 4Å: Chain G: D.57, D.59, N.61, T.63, E.68 5 PLIP interactions: 5 interactions with chain G Metal complexes: G:D.57, G:D.59, G:T.63, G:E.68, G:E.68 CA.9: 6 residues within 4Å: Chain G: D.94, D.96, N.98, Y.100, I.101, E.105 5 PLIP interactions: 5 interactions with chain G Metal complexes: G:D.94, G:D.96, G:Y.100, G:E.105, G:E.105 CA.10: 5 residues within 4Å: Chain H: D.21, D.23, D.25, T.27, E.32 5 PLIP interactions: 5 interactions with chain H Metal complexes: H:D.21, H:D.25, H:D.25, H:T.27, H:E.32 CA.11: 5 residues within 4Å: Chain H: D.57, D.59, N.61, T.63, E.68 5 PLIP interactions: 5 interactions with chain H Metal complexes: H:D.57, H:D.59, H:T.63, H:E.68, H:E.68 CA.12: 6 residues within 4Å: Chain H: D.94, D.96, N.98, Y.100, I.101, E.105 5 PLIP interactions: 5 interactions with chain H Metal complexes: H:D.94, H:D.96, H:Y.100, H:E.105, H:E.105

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lee, C.H. et al., Activation mechanism of a human SK-calmodulin channel complex elucidated by cryo-EM structures. Science (2018)

Release Date

2018-05-02

Peptides

Intermediate conductance calcium-activated potassium channel protein 4: ABCD
Calmodulin-1: EFGH

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
D

E
E

F
F

G
G

H
H

Membrane

We predict this structure to be a membrane protein.
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Intermediate conductance calcium-activated potassium channel protein 4

Calmodulin-1

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