4.1.3.3	Ba2+	about 170% activity at 5 mM and pH 7.5 for N-acetylneuraminate synthesis	749312	
4.1.3.3	Ca2+	about 115% activity at 5 mM	748534	
4.1.3.3	Co2+	about 225% activity at 5 mM and pH 7.5 for N-acetylneuraminate synthesis	749312	
4.1.3.3	Fe3+	about 125% activity at 5 mM and pH 7.5 for N-acetylneuraminate synthesis	749312	
4.1.3.3	K+	about 115% activity at 5 mM	748534	
4.1.3.3	Mg2+	about 270% activity at 5 mM and pH 7.5 for N-acetylneuraminate synthesis	749312	
4.1.3.3	additional information	-	33315, 33316	
4.1.3.3	additional information	no requirement	33314, 33317	
4.1.3.3	additional information	no requirement for metal ions	651432	
4.1.3.3	additional information	not influenced by Na+ and Mg2+	748534	
4.1.3.3	Ni2+	about 110% activity at 5 mM	748534	
4.1.3.3	Ni2+	about 220% activity at 5 mM and pH 7.5 for N-acetylneuraminate synthesis	749312