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[Cloning and expression analysis of a key device of HMGR gene involved in ginsenoside biosynthesis of panax ginseng via synthetic biology approach].
|Title||[Cloning and expression analysis of a key device of HMGR gene involved in ginsenoside biosynthesis of panax ginseng via synthetic biology approach].|
|Publication Type||Journal Article|
|Year of Publication||2013|
|Authors||Luo H-M, Song J-Y, Li X-Y, Sun C, Li C-F, Luo X, Li Y, Chen S-L|
|Journal||Yao xue xue bao = Acta pharmaceutica Sinica|
|Date Published||2013 Feb|
3-Hydroxy-3-methylglutaryl coenzyme-A reductase (HMGR), the first enzyme of mavalonic acid pathway, is one of the key devices involved in ginsenoside biosynthesis based on synthetic biology approach. The open reading frame of a novel HMGR gene from Panax ginseng (PgHMGR2) was cloned and analyzed in this study. PgHMGR2-encoding protein showed 71.6% sequence similarity to a P. ginseng HMGR in GenBank. The full-length cDNA sequence of PgHMGR2 containing 1 770 bp, which encodes 589 amino acids, was cloned by RT-PCR strategy from P. ginseng. The bioinformatic analysis showed that PgHMGR2-encoding protein contained two transmembrane regions and the HMG_CoA_reductase domain, without signal peptide. The protein sequence of PgHMGR2 had the highest sequence similarity (99%) with Panax quinquefolius HMGR (GenBank accession No. ACV65036). The expression level of PgHMGR2 was the highest in flower based on a real-time PCR analysis, followed by leaf and root, and the lowest was in stem. The result will provide a foundation for exploring the molecular function of PgHMGR2 involved in ginsenoside biosynthesis based on synthetic biology approach in P. ginseng plants.
|Alternate Journal||Yao Xue Xue Bao|