...squalene synthase in plant 要的商业价值.三萜皂苷含量和组成的变化又取决于三萜皂苷合成途径中的一些关键酶及其在细胞中的表达水平.鲨烯合酶(Squalene syntase,SS)是三萜皂苷生物合成的第一个关键酶,其含量和活性决定了后续产物的产量.
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青蒿鲨烯合酶基因组dna结构很复杂，包括14个外显子和13个内含子。
The AaSQS genomic DNA has a complex organization containing 14 exons and 13 introns.
利用上述改进的青蒿遗传转化体系，我们得到了反义鲨烯合酶基因的青蒿转化植株。
Using the above improved genetic transformation system, we have got some transformed plants of anti-sense squalene synthase gene.
纯化后的4个鲨烯合酶分别以FPP为底物进行体外催化反应，产物经GC-MS分析在保留时间（RT）为18.44可检测到鲨烯。
The four purified squalene synthase used to catalyzed the substrate FPP. Then the catalysate squalene were detected by GC-MS analysis method with the 18.44 retention time (RT).
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