Taxoid 7beta-hydroxylase

Taxoid 7beta-hydroxylase
Identifiers
EC no.1.14.14.182
Databases
BRENDAenzyme data
ExPASyNiceZyme view
KEGGenzyme entry
MetaCycmetabolic pathway
Rheareactions
PDB structuresRCSB PDB PDBe PDBsum
Search
PMCarticles
PubMedarticles
NCBIproteins

Taxoid 7beta-hydroxylase (EC 1.14.14.182) is an enzyme with systematic name taxusin,NADPH:oxygen 7-oxidoreductase.[1] This enzyme catalyses the following chemical reaction

 
 
O2 + H+
H2O
Rightward reaction arrow with minor substrate(s) from top left and minor product(s) to top right
 
 
 
2D representation of the chemical structure of Q23804537.
7β-hydroxytaxusin
 

The three substrates of this enzyme are taxusin, oxygen, and a proton. It uses a reduced nicotinamide adenine dinucleotide (NADH) cofactor bound to a heme in cytochrome P450 to give 7β-hydroxytaxusin and water as products.[2]

The enzyme is found in the yew tree Taxus cuspidata and is part of the pathway for the biosynthesis of taxol.[1]

References

  1. 1 2 Chau M, Jennewein S, Walker K, Croteau R (May 2004). "Taxol biosynthesis: Molecular cloning and characterization of a cytochrome P450 taxoid 7 beta-hydroxylase". Chemistry & Biology. 11 (5): 663–72. doi:10.1016/j.chembiol.2004.02.025. PMID 15157877.
  2. ↑ Enzyme 1.14.14.182 at KEGG Pathway Database.