γ-Butyrolactone-Dependent Expression of the Streptomyces Antibiotic Regulatory Protein Gene srrY Plays a Central Role in the Regulatory Cascade Leading to Lankacidin and Lankamycin Production in Streptomyces rochei

Shouji Yamamoto, Yuxi He, Kenji Arakawa and Haruyasu Kinashi

Journal of Bacteriology 190 ( 4 ): 1308 - 1316 , 2008