3-Epi-6-deoxocathasterone 23-monooxygenase

3-Epi-6-deoxocathasterone 23-monooxygenase (EC 1.14.14.147, cytochrome P450 90C1, CYP90D1, CYP90C1) is an enzyme with systematic name 3-epi-6-deoxocathasterone,NADPH:oxygen oxidoreductase (C-23-hydroxylating).[1] This enzyme catalyses the following chemical reaction

3-Epi-6-deoxocathasterone 23-monooxygenase
Identifiers
EC no.1.14.14.147
Databases
BRENDAenzyme data
ExPASyNiceZyme view
KEGGenzyme entry
MetaCycmetabolic pathway
Rheareactions
PDB structuresRCSB PDB PDBe PDBsum
Search
PMCarticles
PubMedarticles
NCBIproteins
 
O2
H2O
Rightward reaction arrow with minor substrate(s) from top left and minor product(s) to top right
 
 
 
3-dehydro-6-deoxoteasterone

The enzyme can insert a hydroxy group into other similar compounds, for example to give 3-dehydro-6-deoxoteasterone. It is a cytochrome P450 protein containing heme, isolated from Arabidopsis thaliana, and requires a partner cytochrome P450 reductase for functional expression. This uses nicotinamide adenine dinucleotide phosphate.[2] 3-Epi-6-deoxocathasterone 23-monooxygenase takes part in brassinosteroid biosynthesis.[3]

References

edit
  1. ↑ Ohnishi T, Szatmari AM, Watanabe B, Fujita S, Bancos S, Koncz C, Lafos M, Shibata K, Yokota T, Sakata K, Szekeres M, Mizutani M (November 2006). "C-23 hydroxylation by Arabidopsis CYP90C1 and CYP90D1 reveals a novel shortcut in brassinosteroid biosynthesis". The Plant Cell. 18 (11): 3275–88. Bibcode:2006PlanC..18.3275O. doi:10.1105/tpc.106.045443. PMC 1693957. PMID 17138693.
  2. ↑ Enzyme 1.14.14.147 at KEGG Pathway Database.
  3. ↑ Kim, Gyung-Tae; Fujioka, Shozo; Kozuka, Toshiaki; Tax, Frans E.; Takatsuto, Suguru; Yoshida, Shigeo; Tsukaya, Hirokazu (2005). "CYP90C1 and CYP90D1 are involved in different steps in the brassinosteroid biosynthesis pathway in Arabidopsis thaliana". The Plant Journal. 41 (5): 710–721. doi:10.1111/j.1365-313X.2004.02330.x. PMID 15703058.
edit