SMTL ID : 4ovn.3 (4 other biounits)

Voltage-gated Sodium Channel 1.5 (Nav1.5) C-terminal domain in complex with Calmodulin poised for activation

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.80 Å

Oligo State

hetero-1-1-mer

Ligands

5 x MG: MAGNESIUM ION(Non-covalent)

MG.1: 6 residues within 4Å: Chain A: D.21, K.22, D.23, D.25, T.27, I.28 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.21, A:D.23, A:D.25, A:T.27, H2O.1 MG.2: 4 residues within 4Å: Chain A: V.56, T.63, I.64, E.68 5 PLIP interactions: 2 interactions with chain A, 3 Ligand-Water interactions Metal complexes: A:T.63, A:T.63, H2O.1, H2O.1, H2O.1 MG.3: 5 residues within 4Å: Chain A: D.94, D.96, N.98, Y.100, I.101 3 PLIP interactions: 3 interactions with chain A Metal complexes: A:D.94, A:D.96, A:Y.100 MG.4: 6 residues within 4Å: Chain A: D.130, D.132, G.133, D.134, Q.136, V.137 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.130, A:D.132, A:D.134, A:Q.136, H2O.1 MG.6: 2 residues within 4Å: Chain A: D.65, E.68 1 PLIP interactions: 1 interactions with chain A Metal complexes: A:D.65

1 x PO4: PHOSPHATE ION(Non-functional Binders)

PO4.5: 3 residues within 4Å: Chain A: H.108, T.111, N.112 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:N.112 Salt bridges: A:H.108

1 x SO4: SULFATE ION(Non-functional Binders)

SO4.7: 3 residues within 4Å: Chain A: R.127 Chain B: R.147, H.151 3 PLIP interactions: 2 interactions with chain B, 1 interactions with chain A Salt bridges: B:R.147, B:H.151 Hydrogen bonds: A:R.127

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Gabelli, S.B. et al., Regulation of the NaV1.5 cytoplasmic domain by calmodulin. Nat Commun (2014)

Release Date

2014-12-03

Peptides

Calmodulin: A
Sodium channel protein type 5 subunit alpha: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
C

B
H

Calmodulin

Sodium channel protein type 5 subunit alpha

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