期刊
BIOTECHNOLOGY PROGRESS
卷 27, 期 5, 页码 1257-1263出版社
WILEY-BLACKWELL
DOI: 10.1002/btpr.663
关键词
cellulose; endoglucanase 1; codon optimization; Trichoderma reesei; Pichia pastoris; recombinant expression
资金
- State Planning Office of Turkey [E.ACF-06-00422]
- Turkish Scientific Research Council [105M103]
- Sabanci University
Trichoderma reesei cellulases are important biocatalysts for a wide range of industrial applications that include the paper, feed, and textile industries. T. reesei endoglucanase 1 (egl1) was successfully expressed as an active and stable catalyst in Pichia pastoris for the first time. Codon optimization was applied to egl1 of T. reesei to enhance its expression levels in P. pastoris. When compared with the originally cloned egl1 gene of T. reesei, the synthetic codon optimized egl1 gene (egl1s) was expressed at a higher level in P. pastoris. Batch fermentations of both clones with the same copy number under controlled conditions indicated that codon optimized EGI enzyme activity increased to 1.24 fold after 72 h of methanol induction. Our research indicated that P. pastoris is a suitable host for cellulase production. (C) 2011 American Institute of Chemical Engineers Biotechnol. Prog., 27: 12571263, 2011
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