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The macrofungus Cordyceps militaris contains many kinds of bioactive ingredients that are regulated by functional genes, but the functions of many genes in C. militaris are still unknown. In this study, to improve the frequency of homologous integration, a genetic transformation system based on a split-marker approach was developed for the first time in C. militaris to knock out a gene encoding a...
Escherichia coli has been used for recombinant protein production for many years. However, no native E. coli promoters have been found for constitutive expression in LB medium. To obtain high-expression E. coli promoters active in LB medium, we inserted various promoter regions upstream of eEmRFP that encodes a red fluorescent protein. Among the selected promoters, only colonies of srlA promoter transformants...
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