- Triterpene cyclases from Oryza sativa L.: cycloartenol, parkeol and achilleol B synthases.
Triterpene cyclases from Oryza sativa L.: cycloartenol, parkeol and achilleol B synthases.
Organic letters (2011-04-30)
Ryousuke Ito, Kouya Mori, Ippei Hashimoto, Chiaki Nakano, Tsutomu Sato, Tsutomu Hoshino
PMID21526825
RÉSUMÉ
The gene products of AK121211, AK066327, and AK070534 from Oryza sativa encode cycloartenol, parkeol, and achilleol B synthases, respectively. Parkeol synthase is a unique enzyme that affords parkeol as a single product. Achilleol B synthase is the third seco-type triterpene cyclase identified to date, and triterpenes produced by this synthase include achilleol B (90%), tetracyclic (5.12%) and pentacyclic scaffolds (4.37%), and unidentified triterpenes (0.51%). The pathway for achilleol B biosynthesis is proposed.
MATÉRIAUX