SMTL ID : 4wxv.2 (1 other biounit)

Human cationic trypsin K97D mutant in complex with bovine pancreatic trypsin inhibitor (BPTI)

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.10 Å

Oligo State

hetero-1-1-mer

Ligands

1 x CA: CALCIUM ION(Non-covalent)

CA.1: 4 residues within 4Å: Chain A: E.52, N.54, V.57, E.62 6 PLIP interactions: 4 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:E.52, A:N.54, A:V.57, A:E.62, H2O.1, H2O.1

2 x SO4: SULFATE ION(Non-functional Binders)

SO4.2: 5 residues within 4Å: Chain A: R.78 Chain B: R.20, Y.35, G.37, A.40 6 PLIP interactions: 5 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:Y.35, B:G.37, A:R.78 Water bridges: B:A.40, B:A.40 Salt bridges: B:R.20 SO4.3: 3 residues within 4Å: Chain B: E.7, K.41, R.42 5 PLIP interactions: 5 interactions with chain B Hydrogen bonds: B:R.42 Water bridges: B:E.7, B:N.43 Salt bridges: B:K.41, B:R.42

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Alloy, A.P. et al., Mesotrypsin Has Evolved Four Unique Residues to Cleave Trypsin Inhibitors as Substrates. J.Biol.Chem. (2015)

Release Date

2015-07-22

Peptides

Trypsin-1: A
Pancreatic trypsin inhibitor: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
I

Trypsin-1

Pancreatic trypsin inhibitor

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