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Table 1 Influence of several metal ions on purified CmINV activity ± SE values

From: Identification of the gene for β-fructofuranosidase from Ceratocystis moniliformis CMW 10134 and characterization of the enzyme expressed in Saccharomyces cerevisiae

Ion present

Percentage activity retained*

5 mM

50 mM

None

100%

100%

CaCl2

86 ± 6%

29 ± 2%

CoCl2

118 ± 1%

51 ± 1%

FeCl3

137 ± 7%

34 ± 2%

LiCl

119 ± 2%

186 ± 2%

MgCl2

94 ± 6%

5 ± 5%

NH4Cl

105 ± 16%

4 ± 0%

NiCl2

47 ± 2%

18 ± 2%

ZnCl2

80 ± 18%

4 ± 3%

  1. *Standard five minute assays were conducted at 62.5°C and pH 6 using two different ion concentrations.