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EC 3.1.1.83 Details
show Brenda entryEC number
3.1.1.83
Accepted name
monoterpene ε-lactone hydrolase
Reaction
(1) isoprop(en)ylmethyloxepan-2-one + H2O = 6-hydroxyisoprop(en)ylmethylhexanoate (general reaction);;(2) 4-isopropenyl-7-methyloxepan-2-one + H2O = 6-hydroxy-3-isopropenylheptanoate;;(3) 7-isopropyl-4-methyloxepan-2-one + H2O = 6-hydroxy-3,7-dimethyloctanoate
Other name(s)
MLH
Systematic name
isoprop(en)ylmethyloxepan-2-one lactonohydrolase
Comment
The enzyme catalyses the ring opening of ε-lactones which are formed during degradation of dihydrocarveol by the Gram-positive bacterium Rhodococcus erythropolis DCL14. The enzyme also acts on ethyl caproate, indicating that it is an esterase with a preference for lactones (internal cyclic esters). The enzyme is not stereoselective.
History
created 2008
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1 Oxidoreductases
1.1 Acting on the CH-OH group of donors
1.14.1.2 created 1965, deleted 1972 1.14.1.4 created 1965, deleted 1972 1.14.1.5 created 1965, deleted 1972 1.14.1.7 created 1965, deleted 1972 1.14.1.8 created 1965, deleted 1972 1.14.1.9 created 1965, deleted 1972 1.14.1.10 created 1965, deleted 1972 1.14.1.11 created 1965, deleted 1972
