FIG. 2.

Survival and quantification of cellular lesions of H. salinarum Δura3 and mutant strains exposed to H₂O₂, paraquat, and IR. (A) Survival was calculated as the average ratio (N/No) of surviving CFU from treated (N) compared to untreated (No) cultures. (B) Modified base FapyGua was quantified using GC-MS with isotope dilution. (C) Protein carbonyl residues were quantified by immunodetection. All data shown are the average results of at least three replicates; the uncertainties are standard errors.