Reaction participants Show >> << Hide
- Name help_outline 21-hydroxyprogesterone Identifier CHEBI:16973 (CAS: 64-85-7) help_outline Charge 0 Formula C21H30O3 InChIKeyhelp_outline ZESRJSPZRDMNHY-YFWFAHHUSA-N SMILEShelp_outline [H][C@@]1(CC[C@@]2([H])[C@]3([H])CCC4=CC(=O)CC[C@]4(C)[C@@]3([H])CC[C@]12C)C(=O)CO 2D coordinates Mol file for the small molecule Search links Involved in 7 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
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Namehelp_outline
reduced [adrenodoxin]
Identifier
RHEA-COMP:9998
Reactive part
help_outline
- Name help_outline [2Fe-2S]1+ Identifier CHEBI:33738 Charge 1 Formula Fe2S2 InChIKeyhelp_outline MAGIRAZQQVQNKP-UHFFFAOYSA-N SMILEShelp_outline S1[Fe]S[Fe+]1 2D coordinates Mol file for the small molecule Search links Involved in 263 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline O2 Identifier CHEBI:15379 (CAS: 7782-44-7) help_outline Charge 0 Formula O2 InChIKeyhelp_outline MYMOFIZGZYHOMD-UHFFFAOYSA-N SMILEShelp_outline O=O 2D coordinates Mol file for the small molecule Search links Involved in 2,851 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H+ Identifier CHEBI:15378 Charge 1 Formula H InChIKeyhelp_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILEShelp_outline [H+] 2D coordinates Mol file for the small molecule Search links Involved in 9,932 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline 18-hydroxy-11-deoxycorticosterone Identifier CHEBI:195166 Charge 0 Formula C21H30O4 InChIKeyhelp_outline VPJHREHKRNIYDB-TZGXILGRSA-N SMILEShelp_outline C1[C@@]2([C@@]3([C@]([C@]4([C@](CC3)([C@H](CC4)C(CO)=O)CO)[H])(CCC2=CC(C1)=O)[H])[H])C 2D coordinates Mol file for the small molecule Search links Involved in 1 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
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Namehelp_outline
oxidized [adrenodoxin]
Identifier
RHEA-COMP:9999
Reactive part
help_outline
- Name help_outline [2Fe-2S]2+ Identifier CHEBI:33737 Charge 2 Formula Fe2S2 InChIKeyhelp_outline XSOVBBGAMBLACL-UHFFFAOYSA-N SMILEShelp_outline S1[Fe+]S[Fe+]1 2D coordinates Mol file for the small molecule Search links Involved in 263 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H2O Identifier CHEBI:15377 (CAS: 7732-18-5) help_outline Charge 0 Formula H2O InChIKeyhelp_outline XLYOFNOQVPJJNP-UHFFFAOYSA-N SMILEShelp_outline [H]O[H] 2D coordinates Mol file for the small molecule Search links Involved in 6,485 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:76151 | RHEA:76152 | RHEA:76153 | RHEA:76154 | |
|---|---|---|---|---|
| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
| UniProtKB help_outline |
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Publications
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Functional expression of the cDNAs encoding rat 11 beta-hydroxylase [cytochrome P450(11 beta)] and aldosterone synthase [cytochrome P450(11 beta, aldo)].
Nonaka Y., Okamoto M.
Expression plasmids containing two cDNAs of a rat cytochrome P450(11 beta) family, pcP450(11 beta)-62 [Nonaka, Y., Matsukawa, N., Morohashi, K., Omura, T., Ogihara, T., Teraoka, H. & Okamoto, M. (1989) FEBS Lett. 255, 21-26] and pcP450(11 beta, aldo)-46 [Matsukawa, N., Nonaka, Y., Ying, Z., Higaki ... >> More
Expression plasmids containing two cDNAs of a rat cytochrome P450(11 beta) family, pcP450(11 beta)-62 [Nonaka, Y., Matsukawa, N., Morohashi, K., Omura, T., Ogihara, T., Teraoka, H. & Okamoto, M. (1989) FEBS Lett. 255, 21-26] and pcP450(11 beta, aldo)-46 [Matsukawa, N., Nonaka, Y., Ying, Z., Higaki, J., Ogihara, T. & Okamoto, M. (1990) Biochem. Biophys. Res. Commun. 169, 245-252], were constructed and introduced into COS-7 cells by electroporation. Enzymatic activities of the expressed cytochromes P450(11 beta) and P450(11 beta, aldo) were determined by using 11-deoxycorticosterone, corticosterone, 18-hydroxy-11-deoxycorticosterone, 18-hydroxycorticosterone, or 19-hydroxy-11-deoxycorticosterone as a substrate. Cytochrome P450(11 beta) catalyzed 11 beta-, 18- and 19-hydroxylations of 11-deoxycorticosterone and 19-oxidation or 19-hydroxy-11-deoxycorticosterone at substantial rates, 18-hydroxylation of corticosterone at a very low rate, but no aldosterone production. Cytochrome P450(11 beta, aldo) catalyzed 11 beta- and 18-hydroxylations of 11-deoxycorticosterone, 18-hydroxylation of corticosterone and aldosterone production from 11-deoxycorticosterone or corticosterone. But neither 19-hydroxylation of 11-deoxycorticosterone nor 19-oxidation of 19-hydroxy-11-deoxycorticosterone was catalyzed by cytochrome P450(11 beta, aldo). << Less
Eur. J. Biochem. 202:897-902(1991) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.
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Cloning and expression of the rat adrenal cytochrome P-450 11B3 (CYP11B3) enzyme cDNA: preferential 18-hydroxylation over 11 beta-hydroxylation of DOC.
Zhou M.Y., Gomez-Sanchez E.P., Foecking M.F., Gomez-Sanchez C.E.
The biosynthesis of glucocorticoids and mineralocorticoids in the rat adrenal cortex requires the action of two different cytochrome P450 11 beta-hydroxylases, CYP11B1 and CYP11B2, which are distributed in the zona fasciculata and glomerulosa, respectively. The existence of another cytochrome P450 ... >> More
The biosynthesis of glucocorticoids and mineralocorticoids in the rat adrenal cortex requires the action of two different cytochrome P450 11 beta-hydroxylases, CYP11B1 and CYP11B2, which are distributed in the zona fasciculata and glomerulosa, respectively. The existence of another cytochrome P450-11 beta gene, CYP11B3, was recently reported. Although CYP11B3 has similar gene structure and great homology to the CYP11B1 and -B2 genes, the CYP11B3 mRNA was not originally detected by reverse transcription-polymerase chain reaction (RT-PCR) and has only recently been cloned and detected from neonatal rat adrenals. Herein we demonstrate RT-PCR detection of CYP11B3 mRNA expressed in adult rat adrenal and brain tissues. The whole coding region of the CYP11B3 enzyme cDNA was cloned and sequenced. When transiently expressed in COS-7 cells the CYP11B3 converted deoxycorticosterone (DOC) to corticosterone and 18-hydroxydeoxycorticosterone, but not to 18-hydroxycorticosterone or aldosterone. It produced more 18-OH-DOC than corticosterone. A single mutation in CYP11B3 in which Gly-59 was replaced by Ser, reduced the enzymatic activity 5-6-fold. Furthermore, CYP11B3 mRNA expression is greater in neonatal, compared to adult rat adrenal glands. << Less
Mol. Cell. Endocrinol. 114:137-145(1995) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.
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Molecular biology of rat steroid 11 beta-hydroxylase [P450(11 beta)] and aldosterone synthase [P450(11 beta, aldo)].
Okamoto M., Nonaka Y.
The molecular features of rat steroid 11 beta-hydroxylase [P450(11 beta)] and aldosterone synthase [P450(11 beta, aldo)] are discussed. P450(11 beta) is biosynthesized as a precursor form composed of 499 amino acids, having a 24-amino acid extension peptide. Two species of P450(11 beta, aldo) were ... >> More
The molecular features of rat steroid 11 beta-hydroxylase [P450(11 beta)] and aldosterone synthase [P450(11 beta, aldo)] are discussed. P450(11 beta) is biosynthesized as a precursor form composed of 499 amino acids, having a 24-amino acid extension peptide. Two species of P450(11 beta, aldo) were identified; a precursor form of P450(11 beta, aldo)-1 is 510 amino acids long and has a 34-amino acid extension peptide, while that of P450(11 beta, aldo)-2 is 500 amino acids long and has a 24-amino acid extension peptide. The 286th amino acid of P450(11 beta, aldo)-1 is Glu, while that of P450(11 beta, aldo)-2 is Lys. The cDNA-expression studies showed that P450(11 beta, aldo)-1 had the aldosterone producing activity whereas P450(11 beta, aldo)-2 had no activity, suggesting that Glu286 of P450(11 beta, aldo) plays an important role in the catalysis. The amino acid sequence of a region in P450(11 beta) from Leu337 through Pro352 is highly conserved among the steroidogenic P450s. Functional expression studies on the cDNAs for two P450(11 beta)s showed that P450(11 beta) catalyzes the 11 beta-, 18- and 19-hydroxylations of 11-deoxycorticosterone, but not the aldosterone synthesis. P450(11 beta, aldo), on the other hand, catalyzes the conversion of 11-deoxycorticosterone to corticosterone, 18-hydroxycorticosterone and aldosterone. The two P450(11 beta)s were also shown to catalyze the conversion of 11-deoxycortisol to cortisol, 18-hydroxycortisol and cortisone. << Less
J. Steroid Biochem. Mol. Biol. 41:415-419(1992) [PubMed] [EuropePMC]
This publication is cited by 4 other entries.
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Isolation of aldosterone synthase cytochrome P-450 from zona glomerulosa mitochondria of rat adrenal cortex.
Ogishima T., Mitani F., Ishimura Y.
A cytochrome P-450 capable of producing aldosterone from 11-deoxycorticosterone was purified from the zona glomerulosa of rat adrenal cortex. The enzyme was present in the mitochondria of the zona glomerulosa obtained from sodium-depleted and potassium-repleted rats but scarcely detected in those ... >> More
A cytochrome P-450 capable of producing aldosterone from 11-deoxycorticosterone was purified from the zona glomerulosa of rat adrenal cortex. The enzyme was present in the mitochondria of the zona glomerulosa obtained from sodium-depleted and potassium-repleted rats but scarcely detected in those from untreated rats. It was undetectable in the mitochondria of other zones of the adrenal cortex from both the treated and untreated rats. The cytochrome P-450 was distinguishable from cytochrome P-45011 beta purified from the zonae fasciculata-reticularis mitochondria of the same rats. Molecular weights of the former and the latter cytochromes P-450, as estimated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis, were 49,500 and 51,500, respectively, and their amino acid sequences up to the 20th residue from the N terminus were different from each other at least in one position. The former catalyzed the multihydroxylation reactions of 11-deoxycorticosterone giving corticosterone, 18-hydroxydeoxycorticosterone, 18-hydroxycorticosterone, and a significant amount of aldosterone as products. On the other hand, the latter catalyzed only 11 beta- and 18-hydroxylation reactions of the same substrate to yield either corticosterone or 18-hydroxydeoxycorticosterone. Thus, at least two forms of cytochrome P-450, which catalyze the 11 beta- and 18-hydroxylations of deoxycorticosterone, exist in rat adrenal cortex, but aldosterone synthesis is catalyzed only by the one present in the zona glomerulosa mitochondria. << Less
J. Biol. Chem. 264:10935-10938(1989) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.