The Enzyme Database

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EC 2.3.1.206     
Accepted name: 3,5,7-trioxododecanoyl-CoA synthase
Reaction: 3 malonyl-CoA + hexanoyl-CoA = 3 CoA + 3,5,7-trioxododecanoyl-CoA + 3 CO2
For diagram of cannabinoid biosynthesis, click here
Other name(s): TKS (ambiguous); olivetol synthase (incorrect)
Systematic name: malonyl-CoA:hexanoyl-CoA malonyltransferase (3,5,7-trioxododecanoyl-CoA-forming)
Comments: A polyketide synthase catalysing the first committed step in the cannabinoids biosynthetic pathway of the plant Cannabis sativa. The enzyme was previously thought to also function as a cyclase, but the cyclization is now known to be catalysed by EC 4.4.1.26, olivetolic acid cyclase.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Taura, F., Tanaka, S., Taguchi, C., Fukamizu, T., Tanaka, H., Shoyama, Y. and Morimoto, S. Characterization of olivetol synthase, a polyketide synthase putatively involved in cannabinoid biosynthetic pathway. FEBS Lett. 583 (2009) 2061–2066. [PMID: 19454282]
2.  Gagne, S.J., Stout, J.M., Liu, E., Boubakir, Z., Clark, S.M. and Page, J.E. Identification of olivetolic acid cyclase from Cannabis sativa reveals a unique catalytic route to plant polyketides. Proc. Natl. Acad. Sci. USA 109 (2012) 12811–12816. [PMID: 22802619]
[EC 2.3.1.206 created 2012]
 
 


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