Fig. 3From: Discovery and overproduction of novel highly bioactive pamamycins through transcriptional engineering of the biosynthetic gene clusterComparison of the LC–MS chromatograms of S. albus J1074 P21pamW containing R2 constructs. (A) R2, (B) R2-73 and R2-100 cosmids (C); Different pamamycins are indicated by the corresponding mass to charge ratioBack to article page