Fig. 5From: PhoP- and GlnR-mediated regulation of metK transcription and its impact upon S-adenosyl-methionine biosynthesis in Saccharopolyspora erythraeaQuantification of Er C and Er A in different S. erythraea strains. A The concentration of Er C and Er A produced by the WT strain and OphoP was measured using HPLC. B Er C and Er A concentration of WT, ΔglnR, ΔglnR::glnR, and OglnR strains. Strains A and B grown in phosphate or nitrogen limited medium. Supernatants were harvested after being grown for 6 days. Three independent replicates were operated to calculate mean and the standard deviationsBack to article page