Example sites prone to carbonylation. (A) DRA0302_P252, (B) DR0099_P51, and (C) b0911_K411; and example robust site (D) b3313_P69. Data information: All atoms of central RKPT side chains are shown, with carbonylatable atomic site in red (predicted and measured carbonylated) or black (predicted and measured not oxidized) and labeled with the 1-letter code of the containing amino acid. Positive (blue) and negative (pink) charges within 8Å are labeled. Carbonylatable lysine sites (purple) within 8Å are labeled. Molecular surfaces within 5Å of the central CS are dark gray. See also Fig EV3. 