The Enzyme Database

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Accepted name: dihydromonacolin L-[lovastatin nonaketide synthase] thioesterase
Reaction: dihydromonacolin L-[lovastatin nonaketide synthase] + H2O = holo-[lovastatin nonaketide synthase] + dihydromonacolin L acid
For diagram of lovastatin biosynthesis, click here
Glossary: dihydromonacolin L acid = (3R,5R)-7-[(1S,2S,4aR,6R,8aS)-2,6-dimethyl-1,2,4a,5,6,7,8,8a-octahydronaphthalen-1-yl]-3,5-dihydroxyheptanoate
Other name(s): LovG
Systematic name: dihydromonacolin L-[lovastatin nonaketide synthase] hydrolase
Comments: Dihydromonacolin L acid is synthesized while bound to an acyl-carrier protein domain of the lovastatin nonaketide synthase (EC Since that enzyme lacks a thioesterase domain, release of the dihydromonacolin L acid moiety from the polyketide synthase requires this dedicated enzyme.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Xu, W., Chooi, Y.H., Choi, J.W., Li, S., Vederas, J.C., Da Silva, N.A. and Tang, Y. LovG: the thioesterase required for dihydromonacolin L release and lovastatin nonaketide synthase turnover in lovastatin biosynthesis. Angew. Chem. Int. Ed. Engl. 52 (2013) 6472–6475. [DOI] [PMID: 23653178]
[EC created 2015]

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