SMTL ID : 1p2q.1 (4 other biounits)

Structural consequences of accommodation of four non-cognate amino-acid residues in the S1 pocket of bovine trypsin and chymotrypsin

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.80 Å

Oligo State

hetero-1-1-mer

Ligands

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

SO4.1: 4 residues within 4Å: Chain A: Y.171, W.172, S.217, S.218 7 PLIP interactions: 7 interactions with chain A Hydrogen bonds: A:Y.171, A:S.218 Water bridges: A:Y.171, A:G.216, A:S.217, A:S.217, A:T.219 SO4.2: 4 residues within 4Å: Chain A: K.93, N.95, N.100, N.101 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:N.95, A:N.100, A:N.101 SO4.3: 4 residues within 4Å: Chain A: K.90, N.91, S.92, W.237 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:S.92, A:W.237 Water bridges: A:N.91, A:K.93 SO4.5: 4 residues within 4Å: Chain B: F.4, E.7, K.41, R.42 6 PLIP interactions: 6 interactions with chain B Hydrogen bonds: B:R.42 Water bridges: B:E.7, B:K.41, B:R.42, B:N.43 Salt bridges: B:R.42 SO4.6: 4 residues within 4Å: Chain B: R.20, Y.35, G.37, A.40 7 PLIP interactions: 7 interactions with chain B Hydrogen bonds: B:Y.35, B:Y.35 Water bridges: B:R.20, B:A.40, B:A.40 Salt bridges: B:R.20, B:K.46 SO4.7: 1 residues within 4Å: Chain B: Y.10 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:Y.10, B:Y.10 Water bridges: B:R.39 SO4.8: 2 residues within 4Å: Chain B: P.2, D.3 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:D.3 Water bridges: B:F.4

1 x TRS: 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL(Non-functional Binders)

TRS.4: 7 residues within 4Å: Chain A: D.35, F.41, C.58, G.59, T.61, D.64 Chain B: I.18 4 PLIP interactions: 1 interactions with chain B, 3 interactions with chain A Water bridges: B:I.19, A:D.64 Hydrogen bonds: A:C.58, A:D.64

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Helland, R. et al., Structural consequences of accommodation of four non-cognate amino acid residues in the S1 pocket of bovine trypsin and chymotrypsin. J.Mol.Biol. (2003)

Release Date

2004-04-20

Peptides

Chymotrypsinogen A: A
Pancreatic trypsin inhibitor: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Chymotrypsinogen A

Pancreatic trypsin inhibitor

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