SMTL ID : 2et2.2 (1 other biounit)

Crystal structure of an Asn to Ala mutant of Winged Bean Chymotrypsin Inhibitor protein

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.10 Å

Oligo State

homo-dimer

Ligands

2 x NI: NICKEL (II) ION(Non-covalent)

NI.1: 3 residues within 4Å: Chain A: H.26, E.172 Chain B: H.127 3 PLIP interactions: 2 interactions with chain A, 1 interactions with chain B Metal complexes: A:H.26, A:E.172, B:H.127 NI.3: 3 residues within 4Å: Chain A: H.127 Chain B: H.26, E.172 3 PLIP interactions: 1 interactions with chain A, 2 interactions with chain B Metal complexes: A:H.127, B:H.26, B:E.172

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

SO4.2: 6 residues within 4Å: Chain A: H.26, S.128, N.129, I.130 Chain B: H.26 Ligands: SO4.4 6 PLIP interactions: 4 interactions with chain A, 2 interactions with chain B Hydrogen bonds: A:N.129, A:N.129, A:I.130 Salt bridges: A:H.26, B:H.26 Water bridges: B:N.129 SO4.4: 6 residues within 4Å: Chain A: H.26 Chain B: H.26, S.128, N.129, I.130 Ligands: SO4.2 6 PLIP interactions: 4 interactions with chain B, 2 interactions with chain A Hydrogen bonds: B:N.129, B:N.129, B:I.130 Salt bridges: B:H.26, A:H.26 Water bridges: A:N.129

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Dasgupta, J. et al., Spacer Asn Determines the Fate of Kunitz (STI) Inhibitors, as Revealed by Structural and Biochemical Studies on WCI Mutants. Biochemistry (2006)

Release Date

2006-06-13

Peptides

Chymotrypsin inhibitor 3: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

Chymotrypsin inhibitor 3

Related Entries With Identical Sequence