EC Explorer
[browse EC tree] - [search]
EC 1.14.14.145 Details
show Brenda entryEC number
1.14.14.145
Accepted name
abieta-7,13-dien-18-ol hydroxylase
Reaction
abieta-7,13-dien-18-ol + 2 [reduced NADPH—hemoprotein reductase] + 2 O2 = abieta-7,13-dien-18-oate + 2 [oxidized NADPH—hemoprotein reductase] + 3 H2O (overall reaction);;(1a) abieta-7,13-dien-18-ol + [reduced NADPH—hemoprotein reductase] + O2 = abieta-7,13-dien-18,18-diol + [oxidized NADPH—hemoprotein reductase] + H2O;;(1b) abieta-7,13-dien-18,18-diol = abieta-7,13-dien-18-al + H2O (spontaneous);;(1c) abieta-7,13-dien-18-al + [reduced NADPH—hemoprotein reductase] + O2 = abieta-7,13-dien-18-oate + [oxidized NADPH—hemoprotein reductase] + H2O
Other name(s)
CYP720B1,
PtAO,
abietadienol hydroxylase (ambiguous)
Systematic name
abieta-7,13-dien-18-ol,[reduced NADPH—hemoprotein reductase]:oxygen oxidoreductase (18-hydroxylating)
Comment
A cytochrome P-450 (heme-thiolate) protein. This enzyme catalyses a step in the pathway of abietic acid biosynthesis. The activity has been demonstrated in cell-free stem extracts of Abies grandis (grand fir) and Pinus contorta (lodgepole pine) [1], and the gene encoding the enzyme has been identified in Pinus taeda (loblolly pine) [3]. The recombinant enzyme catalyses the oxidation of multiple diterpene alcohol and aldehydes, including levopimaradienol, isopimara-7,15-dienol, isopimara-7,15-dienal, dehydroabietadienol and dehydroabietadienal. It is not able to oxidize abietadiene.
History
created 2009 as EC 1.14.13.109, modified 2012, transferred 2018 to EC 1.14.14.145
back to topEC Tree
1 Oxidoreductases
1.1 Acting on the CH-OH group of donors
1.6.5.1 created 1961, deleted 1965 1.14.14.2 created 1972, deleted 1976 1.14.14.4 created 2000, deleted 2002
