SMTL ID : 1to2.1

crystal structure of the complex of subtilisin BPN' with chymotrypsin inhibitor 2 M59K, in pH 9 cryosoak

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.30 Å

Oligo State

hetero-1-1-mer

Ligands

1 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 4 PLIP interactions: 4 interactions with chain A Metal complexes: A:D.41, A:L.75, A:I.79, A:V.81

1 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

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

CIT.3: 4 residues within 4Å: Chain A: H.238, W.241, H.276 Ligands: CIT.4 5 PLIP interactions: 5 interactions with chain A Water bridges: A:H.238, A:N.240, A:N.240 Salt bridges: 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:H.238, A:W.241, A:Q.245

3 x 15P: POLYETHYLENE GLYCOL (N=34)(Non-functional Binders)

15P.5: 3 residues within 4Å: Chain A: H.17, T.22, N.76 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:N.76 Water bridges: A:S.24 15P.6: 7 residues within 4Å: Chain A: I.115, N.118, M.119, D.120, S.145, G.146, V.147 No protein-ligand interaction detected (PLIP) 15P.7: 7 residues within 4Å: Chain A: S.37, V.44, A.45, G.46, G.47, P.57, F.58 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:S.37 Water bridges: A:T.55

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': A
chymotrypsin inhibitor 2: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
E

B
I

Subtilisin BPN'

chymotrypsin inhibitor 2

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