A Comparison between Vanadyl, Vanadate, and Decavanadate Effects in Actin Structure and Function: Combination of Several Spectroscopic Studies

Figure 2

G-actin intrinsic fluorescence. G-actin (5 μM) was incubated with VOSO4 (▲) or decavanadate ( ) for 20 min, at 25°C, in 2 mM Tris-HCl (pH 7.5), 0.2 mM CaCl2. The maximum of intrinsic fluorescence spectra ( 𝜆 e x = 295 nm) were plotted against vanadyl or decavanadate (total) concentrations, considering 1.00 the value for native actin. The results shown are the average of, at least, triplicated measurements.
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