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Figure 4.
Fig. 4. The effect of zinc ion on the activation of two
bacterial adenylyl cyclase toxins, EF and CyaA, by CaM. Assays
were performed at 30 °C for 10 min in the presence of 1 nM
EF or CyaA with the indicated concentration of CaM either with
10 mM ZnCl[2] or 1 μM free calcium ion buffered by EGTA; data
are a representative of two experiments.
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