Fig. 3From: Characterization of a pathway-specific activator of milbemycin biosynthesis and improved milbemycin production by its overexpression in Streptomyces bingchenggensis MilR directly activates promoters of milA4-E, orf1 and milF. a MilR-regulating regions are indicated by two vertical green arrows in the mil gene cluster. b Chromogenic assays on AS-1 agar plates containing the substrate 5-bromo-4-chloro-3-indolyl-β-d-glucoronide. Data are representative of three independent experimentsBack to article page