Abstract
Two new shuttle promoter-probe vectors forE.coli andStreptomycetes were constructed. Plasmid vectors allow the cloning of promoter-carrying DNA fragments based on the resistance to neomycin and chloramphenicol both, inE.coli andStreptomycetes. Using these vectors several promoter regions active either inE.coli orS.lividans were identified from the actinophage DNA.
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