the dna fragments, which leads to the expression of a red dye in streptomyces lividans, and their use

摘要

Subjection of Streptomyces coelicolor DSM 3030 to total digestion of the complete DNA, cloning into a suitable vector and transformation of Streptomyces lividans result in colonies with an intense crimson colour. Reisolation of the plasmid DNA and cutting with BamHI results in fragments about 3.4 to 9 kb in length, on which the gene crucial for pigment production is located. The latter is suitable as marker, in particular as inactivation marker, in Streptomycetes.