The present invention relates to a novel N-acetylglucosamine-2-epimerase and a method for preparing CMP-N-acetylneuraminic acid, more specifically, relates to a N-acetylglucosamine-2-epimerase derived from
Bacteroides fragilis
NCTC 9343, and a method for preparing CMP-N-acetylneuraminic acid using said N-acetylglucosamine-2-epimerase. According to the present invention, CMP-N-acetylneuraminic acid can be produced economically in a large amount through a one-step reaction using cytidine monophosphate and N-acetyl-D-glucosamine which are inexpensive substrates.
本发明涉及一种新型的N-乙酰
葡萄糖胺-2-表皮酶和制备
CMP-N-乙酰神经酰胺酸的方法,更具体地,涉及一种源自Bacteroides fragilis NCTC 9343的N-乙酰
葡萄糖胺-2-表皮酶,以及使用该N-乙酰
葡萄糖胺-2-表皮酶制备
CMP-N-乙酰神经酰胺酸的方法。根据本发明,可以通过使用廉价的底物
胞苷酸单
磷酸和N-乙酰-
D-葡萄糖胺进行一步反应,经济地大量生产
CMP-N-乙酰神经酰胺酸。