| Literature DB >> 30277637 |
Guangkai Bian1, Jan Rinkel2, Zhangqian Wang1, Lukas Lauterbach2, Anwei Hou1, Yujie Yuan1, Zixin Deng1,3, Tiangang Liu1,3, Jeroen S Dickschat2.
Abstract
Based on a terpenoid overproduction platform in yeast for genome mining, a chimeric diterpene synthase from the endophytic fungus Colletotrichum gloeosporioides ES026 was characterized as the (5R,12R,14S)-dolasta-1(15),8-diene synthase. The absolute configuration was independently verified through the use of enantioselectively deuterated terpene precursors, which unequivocally established the predicted C1-III-IV cyclization mode for this first characterized clade II-D enzyme. Extensive isotopic labeling experiments and isolation of the intermediate (1R)-δ-araneosene supported the proposed cyclization mechanism.Entities:
Keywords: biosynthesis; cyclases; diterpenes; dolastanes; isotopes
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Year: 2018 PMID: 30277637 DOI: 10.1002/anie.201809954
Source DB: PubMed Journal: Angew Chem Int Ed Engl ISSN: 1433-7851 Impact factor: 15.336