2.3.1.8 1,3-dimercaptopropanol activates at 0.01 M 487515 2.3.1.8 cysteine activates at 0.01 M 487515 2.3.1.8 dithiothreitol maxmimum activity in the presence of 1 mM dithiothreitol 736033 2.3.1.8 hydrogen sulfide activates at 0.01 M 487515 2.3.1.8 additional information not significant efects: NADH, ATP, phosphoenol pyruvate and aspartate, even at concentrations as high as 10 mM 720217 2.3.1.8 NH4Cl 3fold stimulation at 40 mM. No significant increase in activity above 40 mM 674792 2.3.1.8 NH4Cl maximal stimulation at 40 mM, 3fold 674792 2.3.1.8 PPIB cytoplasmic cytophilin, interaction with phosphate acetyltransferase leads to enhanced activity and alteration in Km value. PPIase activity is not essential for these interactions, as PPIB F99A active site mutant still interacts with phosphate acetyltransferase, but PPIB activity is responsible for the observed phosphate acetyltransferase activity enhancement 720425 2.3.1.8 pyruvate - 487532 2.3.1.8 pyruvate 156% of activation at 5 mM 720217