A triple mutant box showing
the effects, in kcal/mol, of single
amino acid mutations on (ΔG⧧)OMP for reactions catalyzed by wild-type OMPDC (black
values), by single mutants of OMPDC (red values), and by double mutants
of OMPDC (green values). These effects are reported as (ΔΔGX∓)OMP for the mutations, calculated from the ratio of the
kinetic parameters kcat/Km for precursor and mutated OMPDC-catalyzed decarboxylation
of OMP, which are reported in Table 3.