Functional expression of CalB in E.coli
2008
Kim, H.S. (Kwangwoon University, Seoul, Republic of Korea) | Kim, Y.H. (Kwangwoon University, Seoul, Republic of Korea), E-mail: [email protected]
Candida antarctica lipase B (CalB) is an efficient biocatalyst for many organic synthesis reactions. To make full use of CalB, we need effective expression system. Previously recombinant CalB was successfully expressed in the methylotropic yeast Pichia pastoris. In addition, we succeed in the functional expression of CalB in the Escherichia coli cytoplasm. This CalB expression system in E.coli has many considerable advantages in comparison with other expression systems and enables high-throughput screening of gene libraries as those derived from directed evolution experiments. To optimize E.coli system, we investigate comparing between OrigamiB (DE3) and BL21 (DE3) and observing effect of IPTG amount.
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