The Enzyme Database

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Accepted name: adrenodoxin-NADP+ reductase
Reaction: 2 reduced adrenodoxin + NADP+ + H+ = 2 oxidized adrenodoxin + NADPH
Other name(s): adrenodoxin reductase; nicotinamide adenine dinucleotide phosphate-adrenodoxin reductase; AdR; NADPH:adrenal ferredoxin oxidoreductase; NADPH-adrenodoxin reductase
Systematic name: reduced adrenodoxin:NADP+ oxidoreductase
Comments: A flavoprotein (FAD). The enzyme, which transfers electrons from NADPH to adrenodoxin molecules, is the first component of the mitochondrial cytochrome P-450 electron transfer systems, and is involved in the biosynthesis of all steroid hormones.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB
1.  Omura, T., Sanders, E., Estabrook, R.W., Cooper, D.Y. and Rosenthal, O. Isolation from adrenal cortex of a nonheme iron protein and a flavoprotein functional as a reduced triphosphopyridine nucleotide-cytochrome P-450 reductase. Arch. Biochem. Biophys. 117 (1966) 660–673.
2.  Chu, J.W. and Kimura, T. Studies on adrenal steroid hydroxylases. Molecular and catalytic properties of adrenodoxin reductase (a flavoprotein). J. Biol. Chem. 248 (1973) 2089–2094. [PMID: 4144106]
3.  Sugiyama, T. and Yamano, T. Purification and crystallization of NADPH-adrenodoxin reductase from bovine adrenocortical mitochondria. FEBS Lett. 52 (1975) 145–148. [DOI] [PMID: 235468]
4.  Hanukoglu, I. and Jefcoate, C.R. Mitochondrial cytochrome P-450scc. Mechanism of electron transport by adrenodoxin. J. Biol. Chem. 255 (1980) 3057–3061. [PMID: 6766943]
5.  Hanukoglu, I. and Hanukoglu, Z. Stoichiometry of mitochondrial cytochromes P-450, adrenodoxin and adrenodoxin reductase in adrenal cortex and corpus luteum. Implications for membrane organization and gene regulation. Eur. J. Biochem. 157 (1986) 27–31. [DOI] [PMID: 3011431]
6.  Hanukoglu, I. and Gutfinger, T. cDNA sequence of adrenodoxin reductase. Identification of NADP-binding sites in oxidoreductases. Eur. J. Biochem. 180 (1989) 479–484. [DOI] [PMID: 2924777]
7.  Ziegler, G.A., Vonrhein, C., Hanukoglu, I. and Schulz, G.E. The structure of adrenodoxin reductase of mitochondrial P450 systems: electron transfer for steroid biosynthesis. J. Mol. Biol. 289 (1999) 981–990. [DOI] [PMID: 10369776]
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