SMTL ID : 1eyl.3 (2 other biounits)

STRUCTURE OF A RECOMBINANT WINGED BEAN CHYMOTRYPSIN INHIBITOR

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.90 Å

Oligo State

homo-dimer

Ligands

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

SO4.1: 3 residues within 4Å: Chain A: H.26, S.128, N.129 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:S.128, A:N.129, A:N.129 Salt bridges: A:H.26 SO4.2: 6 residues within 4Å: Chain A: S.69, L.70 Chain B: S.91, P.92, W.93, K.111 6 PLIP interactions: 4 interactions with chain B, 2 interactions with chain A Water bridges: B:S.91, B:K.111, B:K.111 Salt bridges: B:K.111 Hydrogen bonds: A:L.70, A:F.71 SO4.3: 7 residues within 4Å: Chain A: P.25, H.26, I.27, H.30, R.50, L.171, E.172 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:H.26, A:I.27, A:E.172 Salt bridges: A:H.30, A:R.50 SO4.4: 3 residues within 4Å: Chain A: H.154, D.156, R.157 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:H.154, A:R.157 Salt bridges: A:R.157 SO4.5: 1 residues within 4Å: Chain A: H.30 1 PLIP interactions: 1 interactions with chain A Salt bridges: A:H.30 SO4.6: 3 residues within 4Å: Chain B: H.26, S.128, N.129 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:S.128, B:N.129, B:N.129 Salt bridges: B:H.26 SO4.7: 6 residues within 4Å: Chain A: S.91, P.92, W.93, K.111 Chain B: S.69, L.70 6 PLIP interactions: 4 interactions with chain A, 2 interactions with chain B Water bridges: A:S.91, A:K.111, A:K.111 Salt bridges: A:K.111 Hydrogen bonds: B:L.70, B:F.71 SO4.8: 7 residues within 4Å: Chain B: P.25, H.26, I.27, H.30, R.50, L.171, E.172 5 PLIP interactions: 5 interactions with chain B Hydrogen bonds: B:H.26, B:I.27, B:E.172 Salt bridges: B:H.30, B:R.50 SO4.9: 3 residues within 4Å: Chain B: H.154, D.156, R.157 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:H.154, B:R.157 Salt bridges: B:R.157 SO4.10: 1 residues within 4Å: Chain B: H.30 1 PLIP interactions: 1 interactions with chain B Salt bridges: B:H.30

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Ravichandran, S. et al., The role of Asn14 in the stability and conformation of the reactive-site loop of winged bean chymotrypsin inhibitor: crystal structures of two point mutants Asn14-->Lys and Asn14-->Asp. Protein Eng. (2001)

Release Date

2000-05-24

Peptides

CHYMOTRYPSIN INHIBITOR: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

CHYMOTRYPSIN INHIBITOR

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