SMTL ID : 3bxl.2 (1 other biounit)

Crystal structure of the R-type calcium channeL (CaV2.3) IQ domain and CA2+calmodulin complex

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.30 Å

Oligo State

hetero-2-2-mer

Ligands

8 x CA: CALCIUM ION(Non-covalent)

CA.1: 5 residues within 4Å: Chain A: D.93, D.95, N.97, Y.99, E.104 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.93, A:D.95, A:E.104, A:E.104, H2O.4 CA.2: 5 residues within 4Å: Chain A: D.129, D.131, D.133, Q.135, E.140 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.129, A:D.131, A:Q.135, A:E.140, H2O.1 CA.3: 5 residues within 4Å: Chain A: D.20, D.22, D.24, T.26, E.31 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.20, A:D.22, A:D.24, A:T.26, H2O.1 CA.4: 5 residues within 4Å: Chain A: D.56, D.58, N.60, T.62, E.67 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.56, A:T.62, A:E.67, A:E.67, H2O.4 CA.7: 5 residues within 4Å: Chain C: D.93, D.95, N.97, Y.99, E.104 5 PLIP interactions: 4 interactions with chain C, 1 Ligand-Water interactions Metal complexes: C:D.93, C:D.95, C:E.104, C:E.104, H2O.9 CA.8: 5 residues within 4Å: Chain C: D.129, D.131, D.133, Q.135, E.140 5 PLIP interactions: 4 interactions with chain C, 1 Ligand-Water interactions Metal complexes: C:D.129, C:D.131, C:Q.135, C:E.140, H2O.6 CA.9: 5 residues within 4Å: Chain C: D.20, D.22, D.24, T.26, E.31 5 PLIP interactions: 4 interactions with chain C, 1 Ligand-Water interactions Metal complexes: C:D.20, C:D.22, C:D.24, C:T.26, H2O.7 CA.10: 5 residues within 4Å: Chain C: D.56, D.58, N.60, T.62, E.67 5 PLIP interactions: 4 interactions with chain C, 1 Ligand-Water interactions Metal complexes: C:D.56, C:T.62, C:E.67, C:E.67, H2O.9

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

SO4.5: 5 residues within 4Å: Chain A: R.86, Y.138 Chain C: R.86, Y.138 Ligands: SO4.11 3 PLIP interactions: 2 interactions with chain A, 1 interactions with chain C Water bridges: A:R.86 Salt bridges: A:R.86, C:R.86 SO4.6: 4 residues within 4Å: Chain A: G.40, K.94, H.107, N.111 5 PLIP interactions: 5 interactions with chain A Water bridges: A:G.40, A:G.40, A:K.94 Salt bridges: A:K.94, A:H.107 SO4.11: 5 residues within 4Å: Chain A: R.86, Y.138 Chain C: R.86, Y.138 Ligands: SO4.5 3 PLIP interactions: 1 interactions with chain A, 2 interactions with chain C Salt bridges: A:R.86, C:R.86 Water bridges: C:R.86 SO4.12: 4 residues within 4Å: Chain C: G.40, K.94, H.107, N.111 5 PLIP interactions: 5 interactions with chain C Water bridges: C:G.40, C:G.40, C:K.94 Salt bridges: C:K.94, C:H.107

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Mori, M.X. et al., Crystal structure of the CaV2 IQ domain in complex with Ca2+/calmodulin. To be Published

Release Date

2008-03-25

Peptides

Calmodulin: AC
Voltage-dependent R-type calcium channel subunit alpha-1E peptide: BD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

C
A

B
B

D
B

Calmodulin

Voltage-dependent R-type calcium channel subunit alpha-1E peptide

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