PDBe 1xqd

X-ray diffraction
1.8Å resolution

Crystal structure of P450NOR complexed with 3-pyridinealdehyde adenine dinucleotide

Source organism: Fusarium oxysporum

Function and Biology Details

Reaction catalysed:
Nitrous oxide + NAD(P)(+) + H(2)O = 2 nitric oxide + NAD(P)H. 
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
NADP nitrous oxide-forming nitric oxide reductase Chain: A
Molecule details ›
Chain: A
Length: 403 amino acids
Theoretical weight: 44.36 KDa
Source organism: Fusarium oxysporum
Expression system: Escherichia coli
  • Canonical: P23295 (Residues: 1-403; Coverage: 100%)
Gene names: CYP55, CYP55A1
Sequence domains: Cytochrome P450
Structure domains: Cytochrome p450

Ligands and Environments

2 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL40B2
Spacegroup: P212121
Unit cell:
a: 43.296Å b: 56.121Å c: 163.262Å
α: 90° β: 90° γ: 90°
R R work R free
0.208 0.206 0.243
Expression system: Escherichia coli