Construction and application of a promoter-trapping vector with methyl parathion hydrolase gene mpd as the reporter

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A facilitative and efficient promoter-trapping vector, pUC-mpd, was constructed with the promoterless methyl parathion hydrolase gene as the reporter. This reporter gene is easily used to clone promoters with different promoting strength on selective plates. Promoter regions of the ytkA and ywoF genes with strong promoting and signal peptide functions were cloned from the Bacillus subtilis 168 genomic promoter library with this vector.

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