摘要
Ⅰ. INTRODUCTION Glucose isomerase (EC 5.3.1.5) can catalyze the isomerization of glucose to fructose, which is the basis for the industrial production of high-fructose syrups. A number of glucose isomerases from a variety of bacterial sources have been investigated crystallographically (see Table 1 for detail). It seems that the glucose isomerase from Streptomyces rubiginosus (abbreviated to STRPR) has not the same precise relationships between the spatial structure and biological function as the one from Streptomyces olivochromogenes (abbreviated to STRPO), although those two enzymes are very
