SMTL ID : 1nx0.1

Structure of Calpain Domain 6 in Complex with Calpastatin DIC

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.30 Å

Oligo State

hetero-2-2-mer

Ligands

1 x ALA- LYS- ALA- ILE- ALA: Small molecule inhibitor(Non-covalent)

ALA-LYS-ALA-ILE-ALA.1: 10 residues within 4Å: Chain A: A.106, G.107, F.108, H.109, L.110, D.142, F.145, K.149 Chain B: I.163, L.167 11 PLIP interactions: 9 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:F.108, A:L.110, A:D.142, A:F.145, B:I.163, B:L.167 Hydrogen bonds: A:G.107, A:H.109, A:D.142, A:D.142, A:K.149

6 x CA: CALCIUM ION(Non-covalent)

CA.2: 4 residues within 4Å: Chain A: A.14, D.17, E.19, E.24 5 PLIP interactions: 5 interactions with chain A Metal complexes: A:A.14, A:D.17, A:E.19, A:E.24, A:E.24 CA.3: 6 residues within 4Å: Chain A: D.57, D.59, T.61, K.63, G.65, E.68 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.57, A:D.59, A:T.61, A:E.68, H2O.2 CA.4: 6 residues within 4Å: Chain A: D.87, D.89, S.91, T.93, G.95, E.98 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:D.87, A:D.89, A:S.91, A:T.93, H2O.3 CA.5: 4 residues within 4Å: Chain B: A.14, D.17, E.19, E.24 5 PLIP interactions: 5 interactions with chain B Metal complexes: B:A.14, B:D.17, B:E.19, B:E.24, B:E.24 CA.6: 5 residues within 4Å: Chain B: D.57, D.59, T.61, K.63, E.68 5 PLIP interactions: 4 interactions with chain B, 1 Ligand-Water interactions Metal complexes: B:D.57, B:D.59, B:T.61, B:K.63, H2O.5 CA.7: 7 residues within 4Å: Chain B: D.87, V.88, D.89, S.91, T.93, G.95, E.98 4 PLIP interactions: 4 interactions with chain B Metal complexes: B:D.87, B:D.89, B:S.91, B:T.93

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Todd, B. et al., A structural model for the inhibition of calpain by calpastatin: crystal structures of the native domain VI of calpain and its complexes with calpastatin peptide and a small molecule inhibitor. J.Mol.Biol. (2003)

Release Date

2003-08-19

Peptides

Calcium-dependent protease, small subunit: AB
Calpastatin: CD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
C

D
D

Calcium-dependent protease, small subunit

Calpastatin

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