Fig. 3
From: Interaction of caffeine with the SOS response pathway in Escherichia coli
Growth inhibition of E. coli recA-cells. Change in growth of E. coli SOS pathway mutants when treated with 0.625 mg/mL of caffeine and varying concentrations of MMS, or MMS alone. a Represents density of recA-cells under both treatments at 24 h and b 48 h. c Growth inhibition of uvrA-cells under both treatments at 24 h and d 48 h. e Growth inhibition of umuC-cells treated with MMS with or without caffeine at 24 h and f 48 h. Error bars represent SE.