Table 2 Effects of metal ions and chemical reagents on the activity of purified An SHMT ^a

control

0

100%

Hg²⁺

1

- ^b

Co²⁺

1

60.03 ± 0.27 c

K⁺

1

100.44 ± 0.37

Na⁺

1

100.62 ± 0.30

NH₄⁺

1

95.12 ± 0.58

Sl²⁺

1

94.44 ± 0.83

Mg²⁺

1

108.38 ± 0.85

Ca²⁺

1

91.38 ± 0.11

Ba²⁺

1

102.58 ± 0.33

Cu²⁺

1

8.95 ± 0.36

Zn²⁺

1

2.91 ± 0.11

Mn²⁺

1

60.81 ± 0.28

Fe²⁺

1

- ^b

Pb²⁺

1

98.90 ± 0.32

CO(NH₂)₂

1

60.59 ± 0.45

DTT

1

59.29 ± 0.08

CTAB

0.3%

97.05 ± 0.04

EDTA

1%

101.25 ± 0.65

SDS

5%

- ^b