2.4.1.10	Co2+	slightly activating	488345	
2.4.1.10	Fe2+	4fold increase in activity at 5 mM	488329	
2.4.1.10	Fe3+	dependent on for tertiary structure, can partially be replaced by Sr2+, not Mg2+, Ba2+, and Mn2+	488310	
2.4.1.10	K+	118% activity at 5 mM	757042	
2.4.1.10	Mg2+	115% activity at 5 mM	757042	
2.4.1.10	Mg2+	activates both transfructosylation and hydrolytic activities	735800	
2.4.1.10	Mn2+	128% activity at 5 mM	757042	
2.4.1.10	Mn2+	The transferase activity of levansucrase in the reaction mixture supplemented with Mn2+ is 100% higher than the enzyme activity in medium without metal ions, the hydrolytic activity of the levansucrase is lowered by 80%	689722	
2.4.1.10	MnCl2	22% activation of the immobilized enzyme at 0.1 mM, 30% activation at 0.1 mM of the free enzyme	702972	
2.4.1.10	additional information	enzyme activities of free and immobilized enzymes are not affected by Ca2+	701567