Table 1. Bacterial strains, vectors, and PCR primers used in this study.

Bacterial strains	Reference
Streptomyces tsukubaensis NRRL 18488	US Department of Agriculture, [36]
Streptomyces coelicolor M512	[40]
S. coelicolor M1146	[5]
S. coelicolor M1152	[5]
S. coelicolor M1154	[5]
E. coli ET12567	[43]