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. 2003 Jun;69(6):3272–3279. doi: 10.1128/AEM.69.6.3272-3279.2003

FIG. 4.

FIG. 4.

Metal ion dependence of the in vitro activity of MPGS (A) and MPGP (B). The activity assays were performed in the presence of various concentrations of manganese ions (• and ○), magnesium ions (▪ and □), nickel ions (♦ and ⋄), and cobalt ions (▴ and ▵).