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Information on EC - NADPH-hemoprotein reductase

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EC Tree
     1 Oxidoreductases
         1.6 Acting on NADH or NADPH
             1.6.2 With a heme protein as acceptor
       NADPH-hemoprotein reductase
IUBMB Comments
A flavoprotein containing both FMN and FAD. This enzyme catalyses the transfer of electrons from NADPH, an obligatory two-electron donor, to microsomal P-450 monooxygenases (e.g. EC, unspecific monooxygenase) by stabilizing the one-electron reduced form of the flavin cofactors FAD and FMN. It also reduces cytochrome b5 and cytochrome c. The number n in the equation is 1 if the hemoprotein undergoes a 2-electron reduction, and is 2 if it undergoes a 1-electron reduction.
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The expected taxonomic range for this enzyme is: Eukaryota, Bacteria, Archaea
nadph-cytochrome p-450 reductase, cytochrome p450 reductase, p450 reductase, p-450 reductase, nadph-p450 reductase, p450 bm3, p450 oxidoreductase, nadph cytochrome p450 reductase, cytochrome p450 oxidoreductase, cypor, more
NADPH + oxidized hemoprotein = NADP+ + reduced hemoprotein + H+
show the reaction diagram