RHEA:46589
| Reaction with net flow from left to right. help_outline | |
| Enzymes help_outline | 4 proteins (UniProtKB) |
Reaction participants Show >> << Hide
- Name help_outline calciol Identifier CHEBI:28940 (Beilstein: 2339331; CAS: 67-97-0) help_outline Charge 0 Formula C27H44O InChIKeyhelp_outline QYSXJUFSXHHAJI-YRZJJWOYSA-N SMILEShelp_outline [H][C@@]1(CC[C@]2([H])[C@]1(C)CCC\C2=C/C=C1/C[C@@H](O)CCC1=C)[C@H](C)CCCC(C)C 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
- 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 7,918 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 2,268 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 217 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline calcidiol Identifier CHEBI:17933 (Beilstein: 4270041; CAS: 19356-17-3) help_outline Charge 0 Formula C27H44O2 InChIKeyhelp_outline JWUBBDSIWDLEOM-DTOXIADCSA-N SMILEShelp_outline [H][C@@]1(CC[C@]2([H])[C@]1(C)CCC\C2=C/C=C1/C[C@@H](O)CCC1=C)[C@H](C)CCCC(C)(C)O 2D coordinates Mol file for the small molecule Search links Involved in 10 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H2O Identifier CHEBI:15377 (Beilstein: 3587155; 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 5,223 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 217 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Links to other resources
| RHEA:46588 | RHEA:46589 | RHEA:46590 | RHEA:46591 | |
|---|---|---|---|---|
| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
| UniProtKB help_outline |
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Citations
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Metabolism of vitamin D by human microsomal CYP2R1.
Shinkyo R., Sakaki T., Kamakura M., Ohta M., Inouye K.
The activation of vitamin D requires 25-hydroxylation in the liver and 1alpha-hydroxylation in the kidney. However, it remains unclear which enzyme is relevant to vitamin D 25-hydroxylation. Recently, human CYP2R1 has been reported to be a potential candidate for a hepatic vitamin D 25-hydroxylase ... >> More
The activation of vitamin D requires 25-hydroxylation in the liver and 1alpha-hydroxylation in the kidney. However, it remains unclear which enzyme is relevant to vitamin D 25-hydroxylation. Recently, human CYP2R1 has been reported to be a potential candidate for a hepatic vitamin D 25-hydroxylase. Thus, vitamin D metabolism by CYP2R1 was compared with human mitochondrial CYP27A1, which used to be considered a physiologically important vitamin D(3) 25-hydroxylase. A clear difference was observed between CYP2R1 and CYP27A1 in the metabolism of vitamin D(2). CYP2R1 hydroxylated vitamin D(2) at the C-25 position while CYP27A1 hydroxylated it at positions C-24 and C-27. The K(m) and k(cat) values for the CYP2R1-dependent 25-hydroxylation activity toward vitamin D(3) were 0.45microM and 0.97min(-1), respectively. The k(cat)/K(m) value of CYP2R1 was 26-fold higher than that of CYP27A1. These results strongly suggest that CYP2R1 plays a physiologically important role in the vitamin D 25-hydroxylation in humans. << Less
Biochem. Biophys. Res. Commun. 324:451-457(2004) [PubMed] [EuropePMC]
This publication is cited by 6 other entries.