Molecular cloning of farnesyl diphosphate synthase from Eleutherococcus senticosus and its bioinformatics and expression analysis / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>To clone farnesyl diphosphate synthase (FPS) gene from Eleutherococcus senticosus and analyze the bioinformatics and expression of the gene.</p><p><b>METHOD</b>The FPS full length cDNA was cloned by rapid amplification of cDNA ends (RACE). The data was analyzed by bioinformatics method, the structure and function of FPS was deduced. The expression of FPS in different organ of E. senticosus was detected by RT-PCR.</p><p><b>RESULT</b>The full length of FPS cDNA was 1 499 bp containing a 1 029 bp ORF that encoded 342 amino acids. The deduced protein sequence exhibited two Asp riches conserved motifs (DDXXD). Without transmembrane domain, FPS was located in cytoplasm. RT-PCR result showed that FPS gene expressed in different organs of E. senticosus. The expression amounts of FPS in different organs were different significantly (P < 0.05).</p><p><b>CONCLUSION</b>The FPS gene of E. senticosus was successfully cloned for the first time, and provided a stable foundation for studying on its effect and expression control on E. senticosus saponins biosynthesis.</p>