Diterpene Synthase-Catalyzed Biosynthesis of Distinct Clerodane Stereoisomers [electronic resource]

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Ngôn ngữ: eng

Ký hiệu phân loại: 666.9 Masonry adhesives

Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Science ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2018

Mô tả vật lý: Size: p. 111-117 : , digital, PDF file.

Bộ sưu tập: Metadata

ID: 262894

The diterpene synthase clerodienyl diphosphate synthase 1 (PvCPS1) from the crop plant switchgrass (Panicum virgatum) stereoselectively converts (E,E,E)-geranylgeranyl diphosphate (GGPP) into the clerodane natural product, cis-trans-clerodienyl diphosphate (CLPP, 1). Structure-guided point mutations of PvCPS1 redirected product stereoselectivity toward the formation of a rare cis-clerodane diastereomer, cis-cis-CLPP (2). Additionally, an alternative cis-clerodane diastereomer, (5S,8S,9R,10R)-13Z-CLPP (3), was produced when treating PvCPS1 and select variants thereof with the cis-prenyl substrate (Z,Z,Z)-nerylneryl diphosphate (NNPP). These results support the hypothesis that substrate configuration and minor active-site alterations impact precatalysis substrate folding in the stereoselective biosynthesis of clerodane diterpenoid scaffolds, and can be employed to provide enzymatic access to a broader range of bioactive clerodane natural products.
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