SMTL ID : 5xwa.1

Crystal Structure of Porcine pancreatic trypsin with tripeptide inhibitor, PRY, at pH 10

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.90 Å

Oligo State

hetero-1-1-mer

Ligands

1 x ACE- PRO- ARG: Acetylated-Pro-Arg-Tyr Inhibitor(Non-covalent)

ACE-PRO-ARG.1: 15 residues within 4Å: Chain A: H.48, L.89 Chain B: D.46, S.47, C.48, Q.49, G.50, D.51, S.52, S.67, W.68, G.69, G.71, C.72, G.79 14 PLIP interactions: 13 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:S.47, B:S.47, B:Q.49, B:G.50, B:D.51, B:S.52, B:S.52, B:S.67, B:G.69, B:G.71 Water bridges: B:D.46, B:V.80 Salt bridges: B:D.46 Hydrophobic interactions: A:L.89

1 x CA: CALCIUM ION(Non-covalent)

CA.2: 5 residues within 4Å: Chain A: E.60, N.62, V.65, E.67, E.70 6 PLIP interactions: 5 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:E.60, A:N.62, A:V.65, A:E.67, A:E.70, H2O.2

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Saikhedkar, N.S. et al., Tripeptides derived from reactive centre loop of potato type II protease inhibitors preferentially inhibit midgut proteases of Helicoverpa armigera. Insect Biochem. Mol. Biol. (2018)

Release Date

2018-03-28

Peptides

Trypsin: A
Trypsin: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Trypsin

Trypsin

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