EC Number |
Protein Variants |
Reference |
---|
1.1.1.40 | A339E |
the mutant of isoform nonC4-NADP-ME shows increased catalytic efficiency compared to the wild type enzyme |
762000 |
1.1.1.40 | A387G |
site directed mutagenesis, mutation at the NADP+ binding site, mutant shows 48fold decreased kcat and 4.3 and 5.8fold increased Km for NADP+ and L-malate, respectively, compared to the wild-type enzyme, no activity with NAD+ |
656120 |
1.1.1.40 | A392G |
site directed mutagenesis, mutation at the NADP+ binding site, mutant shows unaltered kcat, but 3.5 and 2.6fold increased Km for NADP+ and L-malate, respectively, and increased activity with NAD+ compared to the wild-type enzyme |
656120 |
1.1.1.40 | C192A |
marked decrease in kcat value, less than 10% of wild-type, with concomitant increase in Km value for NADP+. Unlike wild-type, activity is not significantly changed in presence of oxidant iodosobenzoate |
723390 |
1.1.1.40 | C192A |
site-directed mutagenesis of isozyme ZmC4-NADP-ME, the mutation does not affect the tetrameric state, the mutant displays lower malate affinity than the wild-type enzyme |
723390 |
1.1.1.40 | C231A |
marked decrease in kcat value, less than 10% of wild-type, with concomitant increase in Km value for NADP+. Similar to wild-type, activity decreases in presence of oxidant iodosobenzoate |
723390 |
1.1.1.40 | C231A |
site-directed mutagenesis of isozyme ZmC4-NADP-ME, the mutation does not affect the tetrameric state, the mutant displays lower malate affinity than the wild-type enzyme |
723390 |
1.1.1.40 | C246A |
marked decrease in kcat value, less than 10% of wild-type, with concomitant increase in Km value for NADP+. Unlike wild-type, activity is not significantly changed in presence of oxidant iodosobenzoate |
723390 |
1.1.1.40 | C246A |
site-directed mutagenesis of isozyme ZmC4-NADP-ME, the mutation does not affect the tetrameric state, C246A exhibits a nearly 5fold increase in its affinity towards NADP+ and a 3fold decrease for malate compared to the wild-tpe enzyme |
723390 |
1.1.1.40 | C270A |
marked decrease in kcat value, less than 10% of wild-type, with concomitant increase in Km value for NADP+. Unlike wild-type, activity is not significantly changed in presence of oxidant iodosobenzoate |
723390 |