SMTL ID : 1xa5.1

Structure of Calmodulin in complex with KAR-2, a bis-indol alkaloid

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.12 Å

Oligo State

monomer

Ligands

4 x CA: CALCIUM ION(Non-covalent)

CA.1: 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:E.31, H2O.2 CA.2: 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:Y.99, A:E.104, A:E.104, H2O.2 CA.3: 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:D.133, A:E.140, 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:D.58, A:T.62, A:E.67, H2O.1

1 x KAR: 3"-(BETA-CHLOROETHYL)-2",4"-DIOXO-3, 5"-SPIRO-OXAZOLIDINO-4-DEACETOXY-VINBLASTINE(Non-covalent)

KAR.5: 18 residues within 4Å: Chain A: A.15, L.18, F.19, L.39, Q.41, F.68, M.71, M.72, E.84, I.85, M.109, L.112, E.114, M.124, M.144, M.145, A.147, K.148 9 PLIP interactions: 9 interactions with chain A Hydrophobic interactions: A:A.15, A:L.39, A:F.68, A:M.72, A:I.85, A:K.148 Hydrogen bonds: A:Q.41 pi-Stacking: A:F.19, A:F.19

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Horvath, I. et al., The structure of the complex of calmodulin with KAR-2: a novel mode of binding explains the unique pharmacology of the drug. J.Biol.Chem. (2005)

Release Date

2004-12-21

Peptides

Calmodulin: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Calmodulin

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