SMTL ID : 1tm1.2 (1 other biounit)

CRYSTAL STRUCTURE OF THE COMPLEX OF SUBTILISIN BPN' WITH CHYMOTRYPSIN INHIBITOR 2

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.70 Å

Oligo State

hetero-2-2-mer

Ligands

2 x CA: CALCIUM ION(Non-covalent)

CA.1: 6 residues within 4Å: Chain A: Q.2, D.41, L.75, N.77, I.79, V.81 5 PLIP interactions: 5 interactions with chain A Metal complexes: A:D.41, A:D.41, A:L.75, A:I.79, A:V.81 CA.10: 6 residues within 4Å: Chain C: Q.2, D.41, L.75, N.77, I.79, V.81 5 PLIP interactions: 5 interactions with chain C Metal complexes: C:D.41, C:D.41, C:L.75, C:I.79, C:V.81

2 x NA: SODIUM ION(Non-functional Binders)

NA.2: 4 residues within 4Å: Chain A: G.169, K.170, Y.171, V.174 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:Y.171, A:V.174, A:A.176 NA.11: 4 residues within 4Å: Chain C: G.169, K.170, Y.171, V.174 3 PLIP interactions: 3 interactions with chain C Hydrogen bonds: C:Y.171, C:V.174, C:A.176

6 x CIT: CITRIC ACID(Non-functional Binders)

CIT.3: 9 residues within 4Å: Chain A: H.238, W.241, H.276 Chain C: Y.21, K.237, H.238, H.276 Ligands: CIT.4, CIT.12 14 PLIP interactions: 11 interactions with chain C, 3 interactions with chain A Hydrogen bonds: C:Y.21, C:Y.21, C:H.238, C:H.276 Water bridges: C:K.237, C:H.276, C:H.276, A:H.238 Salt bridges: C:K.237, C:H.238, C:H.276, C:H.276, A:H.238, A:H.276 CIT.4: 4 residues within 4Å: Chain A: W.241, Q.245, H.276 Ligands: CIT.3 5 PLIP interactions: 5 interactions with chain A Hydrophobic interactions: A:Q.245 Hydrogen bonds: A:Q.245 Water bridges: A:Q.245, A:Q.245, A:Q.245 CIT.5: 3 residues within 4Å: Chain A: G.211, N.212, K.213 10 PLIP interactions: 10 interactions with chain A Hydrogen bonds: A:N.212 Water bridges: A:G.211, A:K.213, A:K.213, A:K.213, A:K.213, A:K.213, A:K.213, A:K.213 Salt bridges: A:K.213 CIT.12: 9 residues within 4Å: Chain A: Y.21, K.237, H.238, H.276 Chain C: H.238, W.241, H.276 Ligands: CIT.3, CIT.13 11 PLIP interactions: 8 interactions with chain A, 3 interactions with chain C Hydrogen bonds: A:Y.21, A:H.238 Water bridges: A:Y.21, A:K.237, C:H.238 Salt bridges: A:K.237, A:H.238, A:H.276, A:H.276, C:H.238, C:H.276 CIT.13: 4 residues within 4Å: Chain C: W.241, Q.245, H.276 Ligands: CIT.12 5 PLIP interactions: 5 interactions with chain C Hydrophobic interactions: C:Q.245 Hydrogen bonds: C:Q.245 Water bridges: C:Q.245, C:Q.245, C:Q.245 CIT.14: 3 residues within 4Å: Chain C: G.211, N.212, K.213 10 PLIP interactions: 10 interactions with chain C Hydrogen bonds: C:N.212 Water bridges: C:G.211, C:K.213, C:K.213, C:K.213, C:K.213, C:K.213, C:K.213, C:K.213 Salt bridges: C:K.213

8 x 1PE: PENTAETHYLENE GLYCOL(Non-functional Binders)

1PE.6: 5 residues within 4Å: Chain A: H.17, T.22, S.24, N.76, S.87 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:N.76 Water bridges: A:S.24 1PE.7: 2 residues within 4Å: Chain A: S.145 Ligands: 1PE.8 No protein-ligand interaction detected (PLIP) 1PE.8: 8 residues within 4Å: Chain A: I.115, N.118, M.119, D.120, S.145, G.146, V.147 Ligands: 1PE.7 No protein-ligand interaction detected (PLIP) 1PE.9: 6 residues within 4Å: Chain A: S.37, V.44, A.45, G.46, G.47, F.58 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:S.37 1PE.15: 5 residues within 4Å: Chain C: H.17, T.22, S.24, N.76, S.87 2 PLIP interactions: 2 interactions with chain C Hydrogen bonds: C:N.76 Water bridges: C:S.24 1PE.16: 2 residues within 4Å: Chain C: S.145 Ligands: 1PE.17 No protein-ligand interaction detected (PLIP) 1PE.17: 8 residues within 4Å: Chain C: I.115, N.118, M.119, D.120, S.145, G.146, V.147 Ligands: 1PE.16 No protein-ligand interaction detected (PLIP) 1PE.18: 6 residues within 4Å: Chain C: S.37, V.44, A.45, G.46, G.47, F.58 1 PLIP interactions: 1 interactions with chain C Hydrogen bonds: C:S.37

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Radisky, E.S. et al., Binding, Proteolytic, and Crystallographic Analyses of Mutations at the Protease-Inhibitor Interface of the Subtilisin BPN'/Chymotrypsin Inhibitor 2 Complex(,). Biochemistry (2004)

Release Date

2004-11-09

Peptides

Subtilisin BPN' precursor: AC
chymotrypsin inhibitor 2: BD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
E

C
E

B
I

D
I

Subtilisin BPN' precursor

chymotrypsin inhibitor 2

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