Ornston M K, Ornston L N
J Bacteriol. 1969 Mar;97(3):1227-33. doi: 10.1128/jb.97.3.1227-1233.1969.
Escherichia coli K-12 synthesizes two chromatographically distinct forms of glycerate kinase which differ both in their thermolability and in the dependence of their activity upon pH. One enzymatic form, GK I, is found in cells grown with glycerate, glucarate, or glycolate. Of these compounds, glycolate is the only carbon source that elicits the synthesis of the second enzymatic form, GK II.
大肠杆菌K-12合成两种色谱上不同的甘油酸激酶形式,它们在热稳定性以及活性对pH的依赖性方面均存在差异。一种酶形式,即GK I,存在于以甘油酸、葡糖二酸或乙醇酸培养的细胞中。在这些化合物中,乙醇酸是唯一能引发第二种酶形式GK II合成的碳源。