Fig. 4

Impact of QsLEAP2 on Shigella flexneri cell membrane and genomic DNA. (A) QsLEAP2 affects S. flexneri cell membrane integrity, with LDH release shown as fold-change relative to a negative control (BSA, set at 1). Data are mean ± SEM from four experiments, analysed by one-way ANOVA (*P < 0.05). (B) Hydrolytic activity of QsLEAP2 on bacterial genomic DNA, with BSA as a negative control; one of four independent experiments is presented. Marker: 1 Kb DNA Marker P (Sangon; lot: B600022)