SMTL ID : 4xiy.2 (1 other biounit)

Crystal structure of ketol-acid reductoisomerase from Azotobacter

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.50 Å

Oligo State

homo-dimer

Ligands

2 x FE: FE (III) ION(Non-covalent)

FE.1: 2 residues within 4Å: Chain A: D.190, E.194 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:D.190, A:E.194 FE.5: 2 residues within 4Å: Chain B: D.190, E.194 5 PLIP interactions: 2 interactions with chain B, 3 Ligand-Water interactions Metal complexes: B:D.190, B:E.194, H2O.1, H2O.1, H2O.1

2 x MG: MAGNESIUM ION(Non-covalent)

MG.2: 3 residues within 4Å: Chain A: E.226, E.230 Chain B: D.190 5 PLIP interactions: 1 interactions with chain B, 3 interactions with chain A, 1 Ligand-Water interactions Metal complexes: B:D.190, A:E.226, A:E.226, A:E.230, H2O.1 MG.4: 3 residues within 4Å: Chain A: D.190 Chain B: E.226, E.230 3 PLIP interactions: 2 interactions with chain B, 1 interactions with chain A Metal complexes: B:E.226, B:E.230, A:D.190

1 x PEG: DI(HYDROXYETHYL)ETHER(Non-functional Binders)

PEG.3: 3 residues within 4Å: Chain A: Y.298, T.302, R.305 2 PLIP interactions: 1 interactions with chain A, 1 interactions with chain B Hydrogen bonds: A:R.305, B:N.252

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

PG4.6: 5 residues within 4Å: Chain A: Y.248, N.252 Chain B: Y.298, T.302, R.305 2 PLIP interactions: 1 interactions with chain A, 1 interactions with chain B Hydrogen bonds: A:N.252, B:R.305

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Cahn, J.K. et al., Cofactor specificity motifs and the induced fit mechanism in class I ketol-acid reductoisomerases. Biochem.J. (2015)

Release Date

2015-04-22

Peptides

Ketol-acid reductoisomerase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
C

B
D

Ketol-acid reductoisomerase

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