X-ray diffraction
1.7Å resolution

The structure of E. coli nitroreductase bound with the antibiotic nitrofurazone


Function and Biology Details

Reaction catalysed:
A 5,6,7,8-tetrahydropteridine + NAD(P)(+) = a 6,7-dihydropteridine + NAD(P)H
Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Oxygen-insensitive NAD(P)H nitroreductase Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 217 amino acids
Theoretical weight: 23.94 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli BL21
  • Canonical: P38489 (Residues: 1-217; Coverage: 100%)
Gene names: JW0567, b0578, dprA, nfnB, nfsB, nfsI, ntr
Sequence domains: Nitroreductase family
Structure domains: NADH Oxidase

Ligands and Environments

Cofactor: Ligand FMN 4 x FMN
3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-1
Spacegroup: P21
Unit cell:
a: 70.078Å b: 56.466Å c: 116.085Å
α: 90° β: 103.1° γ: 90°
R R work R free
0.145 0.144 0.167
Expression system: Escherichia coli BL21