Characterization of codon-optimized recombinant Candida rugosa Lipase 5 (LIP5)

Li Chiun Lee, Chih Chung Yen, Conmar C. Malmis, Long Fang Chen, Jen Chieh Chen, Guan Chiun Lee, Jei Fu Shaw*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

14 引文 斯高帕斯(Scopus)

摘要

Recombinant Candida rugosa lipase 5 (LIP5) has been functionally expressed along with other isoforms in our laboratory. However, the characterization and codon optimization of LIP5 have not been done. In this work, we characterized, codon-optimized and compared LIP5 with commercial lipase. LIP5 activity on hydrolysis of p-nitrophenyl (p-NP) butyrate was optimal at 55 °C as compared with 37 °C of the commercial lipase. Several assays were also performed to determine the substrate specificity of LIP5. p-NP butyrate (C 4), butyryl-CoA (C 4), cholesteryl laurate (C 12), and N-carbobenzoxy-l-tyrosine-p-nitrophenyl ester (l-NBTNPE) were found as preferred substrates of LIP5. Interestingly, LIP5 specificity on hydrolysis of amino acid-derivative substrates was shown to be the highest among any lipase isoforms, but it had very weak preference on hydrolyzing triacylglycerol substrates. LIP5 also displays a pH-dependent maximum activity of a lipase but an esterase substrate preference in general. The characterization of LIP5 along with that of LIP1-LIP4 previously identified shows that each lipase isoform has a distinct substrate preference and catalytic activity.

原文英語
頁(從 - 到)10693-10698
頁數6
期刊Journal of Agricultural and Food Chemistry
59
發行號19
DOIs
出版狀態已發佈 - 2011 10月 12

ASJC Scopus subject areas

  • 一般化學
  • 一般農業與生物科學

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