› 6c55

X-ray diffraction
2.09Å resolution

Crystal structure of Staphylococcus aureus Ketol-acid Reductosimerrase with hydroxyoxamate inhibitor 3

Released:
DOI: 10.2210/pdb6c55/pdb
PDB entry 6c55 coloured by chain, front view.
PDB entry 6c55 coloured by chain, side view.
PDB entry 6c55 coloured by chain, top view.
Source organism: Staphylococcus aureus RF122
Entry authors: Kandale A, Patel KM, Zheng S, You L, Guddat LW, Schenk G, Schmbri M, McGeary RP

Function and Biology Details

Reaction catalysed: 
(2R)-2,3-dihydroxy-3-methylbutanoate + NADP(+) = (2S)-2-hydroxy-2-methyl-3-oxobutanoate + NADPH
Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-174217 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Ketol-acid reductoisomerase (NADP(+)) Chains: A, B
Molecule details ›
Chains: A, B
Length: 340 amino acids
Theoretical weight: 37.89 KDa
Source organism: Staphylococcus aureus RF122
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: Q2YUF3 (Residues: 1-334; Coverage: 100%)
Gene names: SAB1941, ilvC
Sequence domains:
Structure domains:

Ligands and Environments


Cofactor: Ligand NAP 2 x NAP
3 bound ligands:
Ligand MG 4 x MG
Ligand EKD 2 x EKD
Ligand EKA 1 x EKA
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: AUSTRALIAN SYNCHROTRON BEAMLINE MX2
Spacegroup: P21
Unit cell:
a: 65.724Å b: 79.032Å c: 69.64Å
α: 90° β: 101.39° γ: 90°
R-values:
R R work R free
0.165 0.163 0.206
Expression system: Escherichia coli BL21

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