the changes in the activity of 6-phosphofructo-2-kinase and pyruvate kinase were measured after separation from possible modulators , and suggest a decrease in their phosphorylation state which can not be attributed to a decrease in the level of camp or in the activity of camp-dependent protein kinase since these two parameters were not modified by insulin .
C0034348
pyruvate kinase
C0031715
phosphorylation