KMID : 0545120170270061106
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Journal of Microbiology and Biotechnology 2017 Volume.27 No. 6 p.1106 ~ p.1111
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Construction of Methanol-Sensing Escherichia coli by the Introduction of a Paracoccus denitrificans MxaY-Based Chimeric Two-Component System
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Ganesh Irisappan
Vidhya Selvamani Eom Gyeong-Tae Hong Soon-Ho
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Abstract
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Escherichia coli was engineered to sense methanol by employing a chimeric two-component system (TCS) strategy. A chimeric MxaY/EnvZ (MxaYZ) TCS was constructed by fusing the Paracoccus denitrificans MxaY with the E. coli EnvZ. Real-time quantitative PCR analysis and GFP-based fluorescence analysis showed maximum transcription of ompC and the fluorescence at 0.01% of methanol, respectively. These results suggested that E. coli was successfully engineered to sense methanol by the introduction of chimeric MxaYZ. By using this strategy, various chimeric TCS-based bacterial biosensors can be constructed and used for the development of biochemical-producing recombinant microorganisms.
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KEYWORD
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Chimeric two-component system, Escherichia coli, green fluorescent protein, methanol
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