Fig. 4From: Engineering of leucine-responsive regulatory protein improves spiramycin and bitespiramycin biosynthesisHPLC detection of SP in S. spiramyceticus 1941 and SSP_Lrp gene mutants. a spiramycin, b S. spiramyceticus 1941, c ΔSSP_Lrp, d 1941-C, e ΔSSP_Lrp-SP, F: ΔSSP_Lrp-SP–CBack to article page