Figure 7.
Three active site peptides in SLO (yellow) exhibit mutation-induced increases in the percent deuterium exchange at 4 h.81 In (a), two key active site residues are shown: L546 (red) and I553 (blue). In (b), the percent HDX at 4h and 30˚C for the representative peptide, 555–565, is plotted as a correlation to the kinetically determined ΔEa (see Table 1).