2.5.1.6 ATP tripolyphosphatase activity stimulated by preincubation with ATP and methionine 639068 2.5.1.6 cycloheximide cycloheximide inhibition of protein synthesis increases isozyme MAT2 mRNA level in the logarithmic phase only, an indication that the gene is regulated in promastigotes at the posttranscriptional level by protein factors that targets the transcript for degradation 686935 2.5.1.6 Dimethylsulfoxide activates alpha and beta isoenzymes from liver 639054 2.5.1.6 Dimethylsulfoxide activates isoform from kidney and isoform MAT-III from liver 639043, 639044 2.5.1.6 Dimethylsulfoxide activates the beta isozyme from liver 13-15fold 639058 2.5.1.6 Dimethylsulfoxide weak activation of the alpha isozyme from liver 639058 2.5.1.6 dithiothreitol required for alpha and beta isoenzymes activity, not required for gamma enzyme 639054 2.5.1.6 E2F1 present continually in the MAT2A promoter during liver regeneration 687118 2.5.1.6 E2F3 present continually in the MAT2A promoter during liver regeneration 687118 2.5.1.6 E2F4 present continually in the MAT2A promoter during liver regeneration 687118