Construction and expression of prokaryotic vector of AsJAZ1 gene from Aquilaria sinensis.

Author: Yong-Cui LIAO ¹ ; Yan-Hong XU ¹ ; Zheng ZHANG ¹ ; Jian-He WEI ¹
Author Information

1. Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China.
Publication Type:Journal Article
Keywords: Aquilaria sinensis; AsJAZ1; prokaryotic expression; vector construction
From: China Journal of Chinese Materia Medica 2016;41(2):192-196
CountryChina
Language:Chinese
Abstract: The full-length coding sequence (cds) of jasmonate-zim-domain protein (AsJAZ1) gene was cloned from Aquilaria sinensis, the prokaryotic vector was constructed and the recombinant proteins expression was induced to provide the basic material for interactive proteins screen and gene function research. In this study, with the total RNA isolated from A. sinensis leave as template, the full-length cds of AsJAZ1 gene was amplified using RT-PCR method and subcloned into pET-28a vector. The recombinant plasmid identified by restriction enzyme digestion and nucleotide sequencing was transformed into E. coli BL21(DE3). Inducing with 0.5 mmol•L⁻¹ IPTG at 37 ℃ for 4 hours, a fusion protein about 39 kDa was maximumly obtained. AsJAZ1 fusion protein had been expressed successfully mainly in the form of inclusion bodies and only a very small amount was secreted into the cytoplasm in the supernatant.