[Objective] We expressed a nikkomycin biosynthetic gene cluster in the well-characterized surrogate Streptomyces coelicolor M1146.[Methods] By using PCR-targeting method,we replaced the promoters of san G and san F in pNIK,which contains nikkomycin biosynthetic gene cluster,with the hrd B promoter to generate pNIKm.We transferred pNIK and pNIKm into S.coelicolor M1146 by intergeneric conjugation and obtained M1146-NIK and M1146-NIKm,respectively.We then evaluated expression of the gene cluster in the hetero...