Table 1.

Effects of metal ions on the recombinant BsMDH activity

Metal ions	Relative activity (%)	Metal ions	Relative activity (%)
None	100.00	2 mM Co2+	17.90 ± 1.01
2 mM Mg2+	90.20 ± 3.83	2 mM Cu2+	17.44 ± 0.32
2 mM Ca2+	69.39 ± 1.43	2 mM K+	12.09 ± 1.55
2 mM Mn2+	62.04 ± 0.25	2 mM Na+	3.28 ± 0.70
2 mM Ni2+	52.16 ± 4.07	2 mM Rb+	0.00 ± 0.00
2 mM Zn2+	18.62 ± 0.44	2 mM Li+	0.00 ± 0.00

Values are expressed as mean ± standard deviation