residues, 94118 Pro residues, 76629 Gln residues, 120194 Ser residues, 110887 Thr residues, 147555 Val residues, 28894 Trp residues, 73340 Tyr residues. (BZ2) Figure S3 ArgGlu Plots - Occurrence of ArgGlu pairs as a function of the spatial distance between the residues in each pair and the solvent accessibility of the shell where the pair is found. The so called ‘‘Absolute’’ plots display the number of contacts found. The so called ‘‘Ratio’’ plots are the ratio between the data in the absolute plots and the corresponding data found in the reference dataset of randomized structures. The figures report the contacts found between 11944 ArgGlu pairs. The intensity map is color coded like described in Figure 4. LysGlu Plots - Occurrence of LysGlu pairs as a function of the spatial distance between the residues in the pair and the solvent References 1. CATH: Protein Structure Classification Database. Available: http://www. cathdb.info/. Accessed Sep 12, 2011. 2. 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