1.3.1.32 C242A the mutant shows 25% activity compared to the wild type enzyme 741383 1.3.1.32 H172A no catalytic activity -, 763715 1.3.1.32 H172A no catalytic activity detected -, 763715 1.3.1.32 H236A kcat/Km for 2-maleylacetate is 2.3fold higher as compared to wild-type value 763715 1.3.1.32 H236A mutation increases the catalytic efficiency (kcat/Km) of the enzyme (PcpE) by more than 2fold 763715 1.3.1.32 H237A kcat/Km for 2-maleylacetate is 3.2fold lower as compared to wild-type value -, 763715 1.3.1.32 H237A Km and kcat are augmented with a reduction in the catalytic efficiency kcat/Km -, 763715 1.3.1.32 H241A kcat/Km for 2-maleylacetate is 1.2fold lower as compared to wild-type value -, 763715 1.3.1.32 H241A Km and kcat are augmented with a reduction in the catalytic efficiency kcat/Km -, 763715 1.3.1.32 H243A the mutant shows 0.4% activity compared to the wild type enzyme 741383