5.4.2.12 D12N no activity 650970 5.4.2.12 D319A site-directed mutagenesis, substitution of the metal-binding residue Asp319 by Ala results in complete loss of independent PGAM activity 727472 5.4.2.12 H123N 3% of wild-type activity 650970 5.4.2.12 H125N 67% of wild-type activity 650970 5.4.2.12 H128N 20% of wild-type activity 650970 5.4.2.12 H23A no enzymic activity. Like wild-type, mutant forms a dimer 679715 5.4.2.12 H407N no activity 650970 5.4.2.12 H42N 91% of wild-type activity 650970 5.4.2.12 H42N/H128N 8% of wild-type activity 650970 5.4.2.12 H445N 18% of wild-type activity 650970 5.4.2.12 H462N 0.3% of wild-type activity 650970 5.4.2.12 H66N 2% of wild-type activity 650970 5.4.2.12 additional information down-regulation of enzyme steady state levels by RNAi correlates with a marked reduction of enzyme activity. Enzyme is required for cell growth in procyclic Trypanosoma brucei 682237 5.4.2.12 additional information insertional mutants of PMG1 and duble mutants of PMG1 and PMG2 are generated. While single mutants are indistinguishable from wild-type in all plant phenotypes assayed, double mutants have no detectable iPGAM activity and show defects in blue light-, abscisic acid-, and low CO2-regulated stomatal movements 728053 5.4.2.12 additional information reduction of enzyme activity by RNA interference leads to embroynic lethality, larval lethylity, and abnormal body morphology 662259 5.4.2.12 R261L no activity 650970 5.4.2.12 S62A no activity 650970 5.4.2.12 S62A no phosphoglycerate mutase activity 652915