Molecular engineering of secretory machinery components for high-level secretion of proteins in Bacillus species |
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Authors: | Zhen Kang Sen Yang Guocheng Du Jian Chen |
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Affiliation: | 1. The Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, 214122, China 2. School of Biotechnology, Jiangnan University, Wuxi, 214122, China 3. The Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education,, Jiangnan University, Wuxi, 214122, China 4. National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, 214122, China
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Abstract: | Secretory expression of valuable enzymes by Bacillus subtilis and its related species has attracted intensive work over the past three decades. Although many proteins have been expressed and secreted, the titers of some recombinant enzymes are still low to meet the needs of practical applications. Signal peptides that located at the N-terminal of nascent peptide chains play crucial roles in the secretion process. In this mini-review, we summarize recent progress in secretory expression of recombinant proteins in Bacillus species. In particular, we highlighted and discussed the advances in molecular engineering of secretory machinery components, construction of signal sequence libraries and identification of functional signal peptides with high-throughput screening strategy. The prospects of future research are also proposed. |
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