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

human cationic trypsin G193R mutant in complex with bovine pancreatic trypsin inhibitor

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.70 Å

Oligo State

hetero-1-1-mer

Ligands

1 x CA: CALCIUM ION(Non-covalent)

CA.1: 4 residues within 4Å: Chain A: H.23, R.49, E.52, I.55 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:E.52, A:I.55

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

SO4.2: 6 residues within 4Å: Chain A: K.79, T.80, L.81, K.155, W.193 Chain B: R.39 2 PLIP interactions: 1 interactions with chain B, 1 interactions with chain A Salt bridges: B:R.39, A:K.155 SO4.3: 4 residues within 4Å: Chain B: F.4, E.7, K.41, R.42 5 PLIP interactions: 5 interactions with chain B Hydrogen bonds: B:R.42 Water bridges: B:F.4, B:N.43 Salt bridges: B:K.41, B:R.42 SO4.4: 4 residues within 4Å: Chain B: R.20, Y.35, G.37, A.40 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:Y.35 Salt bridges: B:R.20, B:K.46

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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