3nks

X-ray diffraction
1.9Å resolution

Structure of human protoporphyrinogen IX oxidase

Released:
Source organism: Homo sapiens
Primary publication:
Structural insight into human variegate porphyria disease.
FASEB J 25 653-64 (2011)
PMID: 21048046

Function and Biology Details

Reaction catalysed:
Protoporphyrinogen-IX + 3 O(2) = protoporphyrin-IX + 3 H(2)O(2)
Biological process:
Cellular component:

Structure analysis Details

Assemblies composition:
monomeric (preferred)
homo dimer
PDBe Complex ID:
PDB-CPX-156166 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Protoporphyrinogen oxidase Chain: A
Molecule details ›
Chain: A
Length: 477 amino acids
Theoretical weight: 50.82 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P50336 (Residues: 1-477; Coverage: 100%)
Gene name: PPOX
Sequence domains: Flavin containing amine oxidoreductase
Structure domains: FAD/NAD(P)-binding domain

Ligands and Environments


Cofactor: Ligand FAD 1 x FAD
2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRF BEAMLINE BL17U
Spacegroup: R32
Unit cell:
a: 136.702Å b: 136.702Å c: 158.877Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.206 0.206 0.232
Expression system: Escherichia coli