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中国生物工程杂志

China Biotechnology
China Biotechnology  2008, Vol. 28 Issue (3): 53-58    DOI:
    
Expression of Plant Monellin in Escherichia coli Induced by Lactose
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Abstract  

According to the amino acid sequence of monellin and the bias in coden choice in Escheria coli,a single chain monellin gene was synthesized and subcloned into a Escheria coli expression vector pET-28a. The recombined plasmid pET-28a-Mon was then transformed into Escheria coli BL21(DE3).Lactose was used as an inducer instead of IPTG.Through proper optimization of induction conditions,an expression level 33.09% of total cellular protein was achieved.The expression level of recombinant protein induced by lactose was basically the same as that induced by IPTG.The result indicated that lactose could be used an promising inducer in the production of recombined Monellin.



Key wordsmonellin      lactose      inducing expression      optimization     
Received: 07 September 2007      Published: 28 March 2008
Cite this article:

. Expression of Plant Monellin in Escherichia coli Induced by Lactose. China Biotechnology, 2008, 28(3): 53-58.

URL:

https://manu60.magtech.com.cn/biotech/     OR     https://manu60.magtech.com.cn/biotech/Y2008/V28/I3/53

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