Cloning and expression analysis of a key device of HMGR gene involved in ginsenoside biosynthesis of Panax ginseng via synthetic biology approach / 药学学报
Acta Pharmaceutica Sinica
;
(12): 219-227, 2013.
Article
in Chinese
| WPRIM
| ID: wpr-235680
ABSTRACT
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Phylogeny
/
Plants, Medicinal
/
Gene Expression Regulation, Enzymologic
/
Open Reading Frames
/
Amino Acid Sequence
/
Cloning, Molecular
/
Sequence Homology, Amino Acid
/
Protein Structure, Secondary
/
DNA, Complementary
/
Plant Stems
Language:
Chinese
Journal:
Acta Pharmaceutica Sinica
Year:
2013
Type:
Article
Similar
MEDLINE
...
LILACS
LIS