【摘 要】
：
Linear prenyl pyrophosphates are the key precursors of many important plant terpenoids:limonene, linalool, abscisic acid, gibberellic acid, chlorophyll.Prenyltransferase (PTS)account for the majority
【机 构】
：
National Key Laboratory of Plant Molecular Genetics,Institute of Plant Physiology and Ecology,Shangh
【出 处】
：
The 1st Molecular Plant International Symposium:From Model S
论文部分内容阅读
Linear prenyl pyrophosphates are the key precursors of many important plant terpenoids:limonene, linalool, abscisic acid, gibberellic acid, chlorophyll.Prenyltransferase (PTS)account for the majority biosynthesis of linear prenyl pyrophosphates.Arabidopsis thaliana possess a group of PTSs whose functions are not clearly determined.We tested the activity of ten AtPTSs and classified them into three different groups: GGPS (C20), GFPS (C25),and ＞C25 PTSs.By determining the representative structures, the underlying mechanism of product chain length determination of these AtPTSs is proposed, and we describe it as a "three floor" model.This model is proved by site-directed mutagenesis and enzymatic analyses.Using this model, we succeed in prediction novel GFPSs in various plant species.
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