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Pathway : Sesquiterpenoid biosynthesis

Identifier  00909 Description  Sesquiterpenoids C15 terpenoids are a group of terpenoids consisting of three isoprene units They are derive from farnesyl diphosphate FPP and can be cyclized to produce various skeletal structures Sesquiterpenoid biosynthesis begins with the loss of diphosphate from FPP under the action of sesquiterpene synthesis enzymes, generating an allylic cation that is highly susceptible to intramolecular attacks Cyclization of the farnesyl cation may take place onto either of the remaining double bonds with the result that 6-, 10-, or 11-membered rings may be formed Many sesquiterpenoids have been isolated from plants, fungi, marine organisms, and Streptomyces species This map shows a few examples of acyclic and cyclic sesquiterpenoids

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