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Literature summary for 1.6.2.4 extracted from

  • Makovec, T.; Breskvar, K.
    Catalytic and immunochemical properties of NADPH-cytochrome P450 reductase from fungus Rhizopus nigricans (2002), J. Steroid Biochem. Mol. Biol., 82, 89-96.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
additional information addition of trypsin significantly increases activity in detergent free buffer, no effect in the presence of detergent Rhizopus stolonifer

Inhibitors

Inhibitors Comment Organism Structure
NADP+
-
Rhizopus stolonifer

Localization

Localization Comment Organism GeneOntology No. Textmining
membrane
-
Rhizopus stolonifer 16020
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
78000
-
SDS-PAGE, band is accompanied by two smaller, proteolytic forms of the enzyme formed during solubilization or purification Rhizopus stolonifer

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2 ferricytochrome P450 + NADPH Rhizopus stolonifer involved in the hydroxylation of progesterone at the 11alpha position 2 ferrocytochrome P450 + NADP+ + H+
-
?

Organism

Organism UniProt Comment Textmining
Rhizopus stolonifer
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Rhizopus stolonifer

Reaction

Reaction Comment Organism Reaction ID
NADPH + oxidized hemoprotein = NADP+ + reduced hemoprotein + H+ at high ionic strength nonclassical two-site ping pong mechanism, at low ionic strength a sequential bisubstrate mechanism Rhizopus stolonifer

Source Tissue

Source Tissue Comment Organism Textmining
mycelium
-
Rhizopus stolonifer
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2 ferricytochrome c + NADPH at high ionic strength nonclassical two-site ping pong mechanism, at low ionic strength a sequential bisubstrate mechanism Rhizopus stolonifer 2 ferrocytochrome c + NADP+ + H+
-
?
2 ferricytochrome P450 + NADPH involved in the hydroxylation of progesterone at the 11alpha position Rhizopus stolonifer 2 ferrocytochrome P450 + NADP+ + H+
-
?

Synonyms

Synonyms Comment Organism
NADPH-cytochrome P450 reductase
-
Rhizopus stolonifer
NADPH-ferrihemoprotein reductase
-
Rhizopus stolonifer
NADPH:ferrihemoprotein oxidoreductase
-
Rhizopus stolonifer

Cofactor

Cofactor Comment Organism Structure
FAD together with FMN Rhizopus stolonifer
FMN together with FAD Rhizopus stolonifer
NADPH
-
Rhizopus stolonifer