Figure 2. Specific activity of enzymes of the serine cycle and their regulation.

Enzymes: Mox, methanol dehydrogenase; GlyA, serine hydroxymethyl transferase; Sga, serine-glyoxylate aminotransferase; Hpr, hydroxypyruvate reductase; Gck, glycerate kinase; Eno, enolase; Ppc, phosphoenolpyruvate carboxylase; Mdh, malate dehydrogenase; Mtk, malate-CoA ligase; Mcl1, malyl-CoA/β-methylmalyl-CoA lyase. The y axis is in nmol min⁻¹ mg⁻¹ protein. M, methanol grown cells; A, acetate grown cells; S, succinate grown cells.