Title |
Enhancing functional production of a chaperone-dependent lipase in Escherichia coli using the dual expression cassette plasmid
|
---|---|
Published in |
Microbial Cell Factories, March 2012
|
DOI | 10.1186/1475-2859-11-29 |
Pubmed ID | |
Authors |
ThiDinh Quyen, ChiHai Vu, GiangThi Thu Le |
Abstract |
The lipase subfamilies I.1 and I.2 show more than 33% homology in the amino acid sequences and most members share another common property that their genes are clustered with the secondary genes whose protein products are required for folding the lipase into an active conformation and secretion into the culture medium. In previous studies, the lipase (LipA) and its chaperone (LipB) from Ralstonia sp. M1 were overexpressed in E. coli and the lipase was successfully refolded in vitro. The purpose of this study was to enhance the production of the active lipase LipA from Ralstonia sp. M1 in the heterologous host E. coli without in vitro refolding process, using two-plasmid co-expression systems and dual expression cassette plasmid systems. |
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