Function and Biology

Human CYP3A4 bound to an inhibitor

Source organism: Homo sapiens

EC 1.14.14.73: Albendazole monooxygenase (sufoxide-forming)

Reaction catalysed:
Albendazole + [reduced NADPH--hemoprotein reductase] + O(2) = albendazole S-oxide + [oxidized NADPH--hemoprotein reductase] + H(2)O
Systematic name:
Albendazole,[reduced NADPH--hemoprotein reductase]:oxygen oxidoreductase (sufoxide-forming)
Alternative Name(s):
  • Albendazole hydroxylase
  • Albendazole sulfoxidase
  • CYP1A2
  • CYP2J2
  • CYP3A4

EC 1.14.14.56: 1,8-cineole 2-exo-monooxygenase

Reaction catalysed:
1,8-cineole + [reduced NADPH--hemoprotein reductase] + O(2) = 2-exo-hydroxy-1,8-cineole + [oxidized NADPH--hemoprotein reductase] + H(2)O
Systematic name:
1,8-cineole,[reduced NADPH--hemoprotein reductase]:oxygen oxidoreductase (2-exo-hydroxylating)
Alternative Name(s):
  • CYP3A4

EC 1.14.14.55: Quinine 3-monooxygenase

Reaction catalysed:
Quinine + [reduced NADPH--hemoprotein reductase] + O(2) = 3-hydroxyquinine + [oxidized NADPH--hemoprotein reductase] + H(2)O
Systematic name:
Quinine,[reduced NADPH--hemoprotein reductase]:oxygen oxidoreductase
Alternative Name(s):
  • CYP3A4
  • Nifedipine oxidase
  • Quinine 3-hydroxylase

EC 1.14.14.1: Unspecific monooxygenase

Reaction catalysed:
RH + [reduced NADPH--hemoprotein reductase] + O(2) = ROH + [oxidized NADPH--hemoprotein reductase] + H(2)O
Systematic name:
Substrate,reduced-flavoprotein:oxygen oxidoreductase (RH-hydroxylating or -epoxidizing)
Alternative Name(s):
  • Aryl hydrocarbon hydroxylase
  • Aryl-4-monooxygenase
  • Cytochrome P450
  • Flavoprotein monooxygenase
  • Flavoprotein-linked monooxygenase
  • Microsomal P-450
  • Microsomal P450
  • Microsomal monooxygenase
  • Xenobiotic monooxygenase

GO terms

Biochemical function:
Biological process:
Cellular component:

Sequence family

Pfam Protein family (Pfam)
PF00067
Domain description: Cytochrome P450
Occurring in:
  1. Cytochrome P450 3A4
The deposited structure of PDB entry 6dag contains 1 copy of Pfam domain PF00067 (Cytochrome P450) in Cytochrome P450 3A4. Showing 1 copy in chain A.

InterPro InterPro annotations
IPR008072
Domain description: Cytochrome P450, E-class, CYP3A
Occurring in:
  1. Cytochrome P450 3A4
IPR001128
Domain description: Cytochrome P450
Occurring in:
  1. Cytochrome P450 3A4
IPR002402
Domain description: Cytochrome P450, E-class, group II
Occurring in:
  1. Cytochrome P450 3A4
IPR036396
Domain description: Cytochrome P450 superfamily
Occurring in:
  1. Cytochrome P450 3A4
IPR017972
Domain description: Cytochrome P450, conserved site
Occurring in:
  1. Cytochrome P450 3A4

Structure domain

CATH CATH domain
1.10.630.10
Class: Mainly Alpha
Architecture: Orthogonal Bundle
Topology: Cytochrome p450
Homology: Cytochrome P450
Occurring in:
  1. Cytochrome P450 3A4
The deposited structure of PDB entry 6dag contains 1 copy of CATH domain 1.10.630.10 (Cytochrome p450) in Cytochrome P450 3A4. Showing 1 copy in chain A.