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. 2012 Aug 23;11:113. doi: 10.1186/1475-2859-11-113

Table 3.

Effects of metal ions onArthrobactersp. 22c L-arabinose isomerase activity

Concentration of metal ions
  
 Relative activity (%)
  
  1 mM 5 mM 10 mM
None
 100
 100
 100
Ca2+
 109 ± 1.8
 105 ± 2.2
 94 ± 1.2
Co2+
 94 ± 1.5
 90 ± 0.2
 82 ± 0.1
Mg2+
 110 ± 0.3
 109 ± 0.1
 110 ± 1.0
Mn2+
 106 ± 6.5
 105 ± 0.2
 105 ± 0.1
Ni2+ 81 ± 0.4 76 ± 0.3 70 ± 0.4