Purification and characterization of the recombinant CMP-sialic acid synthetase from Neisseria meningitidis

被引:22
作者
Gilbert, M [1 ]
Watson, DC [1 ]
Wakarchuk, WW [1 ]
机构
[1] NATL RES COUNCIL CANADA,INST BIOL SCI,OTTAWA,ON K1A 0R6,CANADA
关键词
D O I
10.1023/A:1018379607492
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
CMP-Sialic acid synthetase from Neisseria meningitidis 406Y was expressed in Escherichia coli K113 pLysS and produced at 360 U/L. The purified CMP-sialic acid synthetase used both N-acetyl-neuraminic acid (K-m = 0.34 mM) and N-glycolyl-neuraminic acid (K-m = 2.6 mM) as substrates. The recombinant synthetase could be used in a coupled reaction with an alpha-2,3-sialyltransferase to sialylate a lactose derivative in a one-reactor synthesis.
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页码:417 / 420
页数:4
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