4d6z

X-ray diffraction
1.93Å resolution

Cytochrome P450 3A4 bound to imidazole and an inhibitor

Released:

Function and Biology Details

Reactions catalysed:
RH + [reduced NADPH--hemoprotein reductase] + O(2) = ROH + [oxidized NADPH--hemoprotein reductase] + H(2)O
Quinine + [reduced NADPH--hemoprotein reductase] + O(2) = 3-hydroxyquinine + [oxidized NADPH--hemoprotein reductase] + H(2)O
1,8-cineole + [reduced NADPH--hemoprotein reductase] + O(2) = 2-exo-hydroxy-1,8-cineole + [oxidized NADPH--hemoprotein reductase] + H(2)O
Albendazole + [reduced NADPH--hemoprotein reductase] + O(2) = albendazole S-oxide + [oxidized NADPH--hemoprotein reductase] + H(2)O

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-140289 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Cytochrome P450 3A4 Chain: A
Molecule details ›
Chain: A
Length: 487 amino acids
Theoretical weight: 55.64 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P08684 (Residues: 23-503; Coverage: 96%)
Gene names: CYP3A3, CYP3A4
Sequence domains: Cytochrome P450
Structure domains: Cytochrome P450

Ligands and Environments


Cofactor: Ligand HEM 1 x HEM
3 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL7-1
Spacegroup: I222
Unit cell:
a: 77.05Å b: 99.4Å c: 133.3Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.182 0.18 0.227
Expression system: Escherichia coli BL21