SMTL ID : 3fp7.1

Anionic trypsin variant S195A in complex with bovine pancreatic trypsin inhibitor (BPTI) cleaved at the scissile bond (LYS15-ALA16) determined to the 1.46 A resolution limit

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.46 Å

Oligo State

hetero-1-1-1-mer

Ligands

5 x EDO: 1,2-ETHANEDIOL(Non-functional Binders)

EDO.1: 7 residues within 4Å: Chain A: N.19, G.21, Y.22, H.23, R.49, I.55, N.56 6 PLIP interactions: 6 interactions with chain A Hydrogen bonds: A:N.19, A:H.23, A:R.49 Water bridges: A:G.21, A:H.23, A:R.49 EDO.2: 5 residues within 4Å: Chain A: I.30, N.31, L.105, Q.217, I.220 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:N.31 EDO.3: 7 residues within 4Å: Chain A: K.79, T.80, L.81, K.155, W.193 Chain B: P.13 Chain C: R.24 2 PLIP interactions: 1 interactions with chain C, 1 interactions with chain A Hydrogen bonds: C:R.24, A:T.80 EDO.4: 6 residues within 4Å: Chain A: G.194, Y.195, G.196 Chain B: Y.10, G.12, P.13 6 PLIP interactions: 3 interactions with chain A, 3 interactions with chain B Hydrogen bonds: A:G.196, B:Y.10 Water bridges: A:Q.174, A:G.194, B:G.12, B:P.13 EDO.7: 5 residues within 4Å: Chain B: D.3, F.4, E.7 Chain C: R.27 Ligands: SO4.9 3 PLIP interactions: 2 interactions with chain C, 1 interactions with chain B Hydrogen bonds: C:R.27, B:D.3 Water bridges: C:K.26

1 x PG4: TETRAETHYLENE GLYCOL(Non-functional Binders)

PG4.5: 6 residues within 4Å: Chain A: G.3, F.165, E.167, G.168, G.169, K.170 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:G.3, A:K.170, A:K.170

1 x CA: CALCIUM ION(Non-covalent)

CA.6: 5 residues within 4Å: Chain A: E.52, N.54, V.57, E.59, E.62 6 PLIP interactions: 5 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:E.52, A:N.54, A:V.57, A:E.59, A:E.62, H2O.1

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

SO4.8: 4 residues within 4Å: Chain C: R.5, Y.20, G.22, A.25 4 PLIP interactions: 4 interactions with chain C Water bridges: C:R.5, C:Y.20, C:A.25 Salt bridges: C:R.5 SO4.9: 5 residues within 4Å: Chain B: F.4, E.7 Chain C: K.26, R.27 Ligands: EDO.7 6 PLIP interactions: 6 interactions with chain C Hydrogen bonds: C:R.27 Water bridges: C:K.26, C:K.26, C:N.28 Salt bridges: C:K.26, C:R.27 SO4.10: 1 residues within 4Å: Chain C: R.27 3 PLIP interactions: 3 interactions with chain C Water bridges: C:R.27, C:R.27 Salt bridges: C:R.27 SO4.11: 3 residues within 4Å: Chain C: I.3, I.4, R.5 5 PLIP interactions: 4 interactions with chain A, 1 interactions with chain C Water bridges: A:K.43, A:K.43, A:K.43 Salt bridges: A:K.43, C:R.5

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Zakharova, E. et al., Structure of a serine protease poised to resynthesize a peptide bond. Proc.Natl.Acad.Sci.USA (2009)

Release Date

2009-02-17

Peptides

Anionic trypsin-2: A
Pancreatic trypsin inhibitor: B
Pancreatic trypsin inhibitor: C

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
E

B
I

C
J

Anionic trypsin-2

Pancreatic trypsin inhibitor

Pancreatic trypsin inhibitor

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