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ent-Cassa-12,15-diene synthase (EC 4.2.3.28, OsDTC1, OsKS7) is an enzyme with systematic name ent-copalyl-diphosphate diphosphate-lyase (ent-cassa-12,15-diene-forming). This enzyme catalyses the following chemical reaction

ent-copalyl diphosphate ${\displaystyle \rightleftharpoons }$ ent-cassa-12,15-diene + diphosphate

This class I diterpene cyclase produces ent-cassa-12,15-diene, a precursor of the rice phytoalexins (-)-phytocassanes A-E.

References

1. Cho EM, Okada A, Kenmoku H, Otomo K, Toyomasu T, Mitsuhashi W, Sassa T, Yajima A, Yabuta G, Mori K, Oikawa H, Toshima H, Shibuya N, Nojiri H, Omori T, Nishiyama M, Yamane H (January 2004). "Molecular cloning and characterization of a cDNA encoding ent-cassa-12,15-diene synthase, a putative diterpenoid phytoalexin biosynthetic enzyme, from suspension-cultured rice cells treated with a chitin elicitor". The Plant Journal. 37 (1): 1–8. doi:10.1046/j.1365-313x.2003.01926.x. PMID 14675427.

External links

• Ent-cassa-12,15-diene+synthase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)

• Biology

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