Description
Cytochrome P450 reductase is a membrane bound enzyme required for electron transfer from NADP to cytochrome P450 in microsomes. It can also provide electron transfer to heme oxygenase and cytochrome B5. The cytochrome P450 enzyme system is mainly involved in the detoxification of xenobiotics in the liver. It also participates in the activation of procarcinogens and the metabolism of endogeneous substrates such as steroids.
Abbr
CPR, Recombinant (Human)
Source
Baculovirus infected insect cells
Applications
Human cytochrome P450 reductase has been used in a study to assess the biocatalytic synthesis and structure elucidation of cyclized metabolites of the deacetylase inhibitor panobinostat. Human cytochrome P450 reductase has also been used in a study to investigate the effects of coupled motions on electrons along the human microsomal P450 chains.
Form
Supplied in a solution containing 10 mM potassium phosphate, pH 7.4, 0.1 mM EDTA, 0.5 mM DTT, 20% (v/v) glycerol
Enzyme Commission Number
EC 1.6.2.4
Molecular Weight
76.5 kDa
Unit Definition
One unit will cause the reduction of 1.0 μmole of cytochrome c by NADPH per minute at pH 7.4 at 37 °C.
Synonyms
EC 1.6.2.4; NADPH:ferrihemoprotein oxidoreductase; NADPH:hemoprotein oxidoreductase; NADPH:P450 oxidoreductase; P450 reductase; CPR; 9039-06-9; FAD-cytochrome c reductase; NADPH-dependent cytochrome c reductase; NADPH:P-450 reductase