Total carbonyl-bearing proteins detected by shotgun redox proteomic measurement in three biological replicates each of E. coli and D. radiodurans with and without irradiation. The left axis is the number of sequence-unique proteins detected as carbonylated. The right axis is the number of sites in total detected as carbonylated (red) or not oxidized (black) in peptides bearing at least one carbonyl. Stripes indicate carbonylated proteins and carbonylatable sites detected only in irradiated samples. 