期刊
CURRENT OPINION IN BIOTECHNOLOGY
卷 16, 期 5, 页码 538-545出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.copbio.2005.07.008
关键词
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The expression of heterologous secreted proteins in Escherichia coli is widely employed for laboratory and preparative purposes. Thanks to advances in expression technologies over the past 25 years, many mammalian proteins can now be produced routinely in secreted form with yields in the gram/litre scale. Nonetheless, ensuring efficient secretion across the inner membrane, and preventing proteolytic degradation, incorrect disulfide-bond formation and aggregation into periplasmic inclusion bodies, frequently presents significant challenges. Recent advances in the understanding of the periplasmic folding quality control system are leading to new strategies to facilitate the expression of heterologous secreted proteins. In parallel, protein design and directed evolution approaches are beginning to be exploited for engineering of the cellular protein folding machinery to achieve further improvements in protein expression.
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