SMTL ID : 3if7.1

Structure of Calmodulin complexed with its first endogenous inhibitor, sphingosylphosphorylcholine

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.60 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.24, A:T.26, A:E.31, H2O.4 CA.2: 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 CA.3: 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.24 CA.4: 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:Q.135, A:E.140, A:E.140, H2O.2

4 x SPU: 2-{[(R)-{[(2S,3R,4E)-2-AMINO-3-HYDROXYOCTADEC-4-EN-1-YL]OXY}(HYDROXY)PHOSPHORYL]OXY}-N,N,N-TRIMETHYLETHANAMINIUM(Non-covalent)

SPU.5: 18 residues within 4Å: Chain A: E.11, M.76, E.84, A.88, F.92, I.100, L.105, E.123, M.124, E.127, A.128, V.136, F.141, M.144, M.145 Ligands: SPU.6, SPU.7, SPU.8 5 PLIP interactions: 5 interactions with chain A Hydrophobic interactions: A:E.84, A:F.92, A:F.141 Salt bridges: A:E.11, A:E.127 SPU.6: 12 residues within 4Å: Chain A: E.11, A.15, L.18, M.36, L.39, Q.41, E.87, M.109, L.112, M.124 Ligands: SPU.5, SPU.7 1 PLIP interactions: 1 interactions with chain A Hydrophobic interactions: A:L.39 SPU.7: 12 residues within 4Å: Chain A: F.12, A.15, F.19, L.32, M.51, E.54, V.55, M.71, M.72 Ligands: SPU.5, SPU.6, SPU.8 3 PLIP interactions: 3 interactions with chain A Hydrophobic interactions: A:F.12, A:A.15, A:F.19 SPU.8: 7 residues within 4Å: Chain A: M.72, K.75, M.76, M.144, M.145 Ligands: SPU.5, SPU.7 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Kovacs, E. et al., Structure and mechanism of calmodulin binding to a signaling sphingolipid reveal new aspects of lipid-protein interactions. Faseb J. (2010)

Release Date

2010-06-30

Peptides

Calmodulin: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Calmodulin

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