5.4.2.7 2-mercaptoethanol 100% activity at 0.5 mM 746733 5.4.2.7 alpha-D-Glucose 1,6-bisphosphate about 7fold increase of activity at 0.001 mM 748271 5.4.2.7 alpha-D-glucose1,6-bisphosphate - 746733 5.4.2.7 Cys activates 3346 5.4.2.7 Cys enhances activity, particularly in presence of Mg2+ 3339 5.4.2.7 D-Glucose 1,6-bisphosphate required 727521 5.4.2.7 D-Glucose 1,6-bisphosphate there is a concentration-dependent enhancement of PPM activity between 0.0001 mM and 0.0025 mM D-glucose 1,6-bisphosphate 715660 5.4.2.7 D-glucose 1,6-diphosphate - 695174 5.4.2.7 Deoxyribose-1,5-diphosphate 10fold stimulation, Km: 0.00017 mM, optimal concentration: 0.0014 mM 3340 5.4.2.7 dithiothreitol 100% activity at 0.5 mM 746733 5.4.2.7 glucose 1,6-bisphosphate required for activation. The conformational change in Lys240 alters the affinity of the enzyme for the activator 726977 5.4.2.7 glucose 1,6-diphosphate 3fold stimulation, Km: 0.00008 mM, optimal concentration: 0.0007 mM 3340 5.4.2.7 glucose 1,6-diphosphate activates, optimal concentration 0.01 mM 3346 5.4.2.7 glucose 1,6-diphosphate required for maximal activity 3339 5.4.2.7 ribose-1,5-diphosphate 10fold stimulation, Km: 0.00017 mM, optimal concentration: 0.0014 mM 3340 5.4.2.7 ribose-1,5-diphosphate stimulates, Km: 0.00024 mM for enzyme form I, 0.00027 mM for enzyme form II and 0.00029 mM for enzyme form III 3343