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。