| 题目：遗传改造细菌基因组的策略：基因定点突变、基因失活和基因过表达 |
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| 摘 要： |
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| 收稿时间： | 2015 Aug 4 |
Strategies used for genetically modifying bacterial genome: site-directed mutagenesis,gene inactivation,and gene over-expression |
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| Authors: | Jian-zhong Xu Wei-guo Zhang |
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| Institution: | 1.The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology,Jiangnan University,Wuxi,China |
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| Abstract: | With the availability of the whole genome sequence of Escherichia coli or Corynebacterium glutamicum, strategies for directed DNA manipulation have developed rapidly. DNA manipulation plays an important role in understanding the function of genes and in constructing novel engineering bacteria according to requirement. DNA manipulation involves modifying the autologous genes and expressing the heterogenous genes. Two alternative approaches, using electroporation linear DNA or recombinant suicide plasmid, allow a wide variety of DNA manipulation. However, the over-expression of the desired gene is generally executed via plasmid-mediation. The current review summarizes the common strategies used for genetically modifying E. coli and C. glutamicum genomes, and discusses the technical problem of multi-layered DNA manipulation. Strategies for gene over-expression via integrating into genome are proposed. This review is intended to be an accessible introduction to DNA manipulation within the bacterial genome for novices and a source of the latest experimental information for experienced investigators. |
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| Keywords: | Escherichia coli Corynebacterium glutamicum DNA manipulation Site-directed mutagenesis Gene inactivation Gene over-expression |
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