SMTL ID : 2f91.1

1.2A resolution structure of a crayfish trypsin complexed with a peptide inhibitor, SGTI

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.20 Å

Oligo State

hetero-1-1-mer

Ligands

6 x CD: CADMIUM ION(Non-covalent)

CD.1: 8 residues within 4Å: Chain A: E.64, L.65, D.66, M.67, V.69, N.70, E.71, E.74 6 PLIP interactions: 5 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:E.64, A:D.66, A:V.69, A:E.71, A:E.74, H2O.8 CD.2: 4 residues within 4Å: Chain A: D.127, P.152 Ligands: CL.7, CL.8 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:D.127, A:D.127 CD.3: 2 residues within 4Å: Chain A: E.53, K.81 5 PLIP interactions: 1 interactions with chain A, 4 Ligand-Water interactions Metal complexes: A:E.53, H2O.1, H2O.9, H2O.9, H2O.12 CD.4: 1 residues within 4Å: Chain A: D.6 5 PLIP interactions: 2 interactions with chain A, 3 Ligand-Water interactions Metal complexes: A:D.6, A:D.6, H2O.8, H2O.8, H2O.11 CD.5: 5 residues within 4Å: Chain A: D.156, D.170, M.172, I.173, E.224 5 PLIP interactions: 3 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:D.156, A:D.170, A:E.224, H2O.7, H2O.7 CD.6: 1 residues within 4Å: Chain A: E.119 3 PLIP interactions: 2 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:E.119, A:E.119, H2O.12

2 x CL: CHLORIDE ION(Non-functional Binders)

CL.7: 3 residues within 4Å: Chain A: D.127 Ligands: CD.2, CL.8 Ligand excluded by PLIP CL.8: 8 residues within 4Å: Chain A: D.127, T.150, V.151, P.152, V.177, K.182 Ligands: CD.2, CL.7 Ligand excluded by PLIP

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Fodor, K. et al., Enzyme:Substrate Hydrogen Bond Shortening during the Acylation Phase of Serine Protease Catalysis. Biochemistry (2006)

Release Date

2006-04-18

Peptides

hepatopancreas trypsin: A
Serine protease inhibitor I/II: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

hepatopancreas trypsin

Serine protease inhibitor I/II

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