SMTL ID : 1uhb.1

Crystal structure of porcine alpha trypsin bound with auto catalyticaly produced native peptide at 2.15 A resolution

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.15 Å

Oligo State

hetero-1-1-mer

Ligands

1 x GLY- LYS- ASP- SER- CYS- GLN- GLY- ASP- SER: 9-mer peptide from Trypsin(Non-covalent)

GLY-LYS-ASP-SER-CYS-GLN-GLY-ASP-SER.1: 26 residues within 4Å: Chain A: S.20, S.22, H.23, F.24, C.25, H.40, C.41, K.43 Chain B: Y.6, D.46, S.47, C.48, Q.49, G.50, D.51, S.52, V.66, S.67, W.68, G.69, Y.70, G.71, C.72, K.77, G.79 Ligands: ACT.3 18 PLIP interactions: 13 interactions with chain B, 5 interactions with chain A Hydrophobic interactions: B:Y.6, B:V.66 Hydrogen bonds: B:Y.27, B:Q.49, B:Q.49, B:Q.49, B:Q.49, B:G.50, B:D.51, B:S.52, B:S.52, B:Y.70, B:G.71, A:S.22, A:K.43, A:W.121 Water bridges: A:F.24 Salt bridges: A:K.43

1 x CA: CALCIUM ION(Non-covalent)

CA.2: 5 residues within 4Å: Chain A: E.52, N.54, V.57, E.59, E.62 5 PLIP interactions: 4 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:N.54, A:V.57, A:E.59, A:E.62, H2O.1

1 x ACT: ACETATE ION(Non-functional Binders)

ACT.3: 2 residues within 4Å: Chain A: K.43 Ligands: GLY-LYS-ASP-SER-CYS-GLN-GLY-ASP-SER.1 1 PLIP interactions: 1 interactions with chain A Salt bridges: A:K.43

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Ibrahim, B.S. et al., Trypsin activity reduced by an autocatalytically produced nonapeptide. J.Biomol.Struct.Dyn. (2004)

Release Date

2004-07-27

Peptides

Trypsin: A
Trypsin: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Trypsin

Trypsin

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