Fig. 3From: Manipulation of two regulatory genes for efficient production of chromomycins in Streptomyces reseiscleroticusHeterologous expression of SrcmPKS in S. lividans K4–114. a HPLC analysis of the extracts of S. lividans K4–114 harboring pSUN6 (i), pTZ3 (ii) and empty pRM5 vector (iii) respectively. Compounds were detected at 420 nm. b Formation of SEK15b (3) through spontaneous cyclization of the nascent decaketide chainBack to article page