SMTL ID : 4dg4.2 (3 other biounits)

Human mesotrypsin-S39Y complexed with bovine pancreatic trypsin inhibitor (BPTI)

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.40 Å

Oligo State

hetero-1-1-mer

Ligands

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

SO4.1: 3 residues within 4Å: Chain A: Y.22, H.23, K.56 13 PLIP interactions: 9 interactions with chain A, 4 interactions with chain B Hydrogen bonds: A:H.23 Water bridges: A:H.23, A:H.23, A:K.56, A:K.56, A:K.56, A:R.175, B:R.17, B:R.17, B:R.17, B:R.17 Salt bridges: A:H.23, A:K.56 SO4.2: 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:K.41, B:N.43 Salt bridges: B:R.42 SO4.3: 5 residues within 4Å: Chain A: R.78 Chain B: R.20, Y.35, G.37, A.40 7 PLIP interactions: 4 interactions with chain B, 3 interactions with chain A Hydrogen bonds: B:Y.35, B:G.37 Water bridges: B:R.20, A:R.78, A:R.78 Salt bridges: B:R.20, A:R.78 SO4.4: 4 residues within 4Å: Chain B: P.9, Y.10, T.11, G.12 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:T.11, B:T.11, B:G.12

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Salameh, M.A. et al., Presence versus absence of hydrogen bond donor Tyr-39 influences interactions of cationic trypsin and mesotrypsin with protein protease inhibitors. Protein Sci. (2012)

Release Date

2012-09-12

Peptides

PRSS3 protein: A
Pancreatic trypsin inhibitor: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
C

PRSS3 protein

Pancreatic trypsin inhibitor

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