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Table 1 Effect of metal ions on lytic activity of EDTA-treated LysB4

From: Characterization of LysB4, an endolysin from the Bacillus cereus-infecting bacteriophage B4

 

Relative lytic activity (%)

Untreated

100

5 mM EDTA

8.5 ± 0.2

Metal ions

0.1 mM

1.0 mM

Zn2+

104 ± 2.8

Not available

Mn2+

89.5 ± 17.6

96 ± 8.4

Ca2+

34.5 ± 12.0

90 ± 11.3

Mg2+

32 ± 9.8

90.2 ± 9.6

Hg2+

8.3 ± 2.5

Not available

Cu2+

17.2 ± 5.9

12.5 ± 0.7

  1. Relative lytic activities were measured by comparing the lytic activity of tests with it of LysB4 that was not treated with EDTA initially (Untreated). Values represent the mean ± standard deviation (n = 3).