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Chromatograms of Tc(VII) reduction by soluble fractions of D. fructosovorans at pH 8.0. Soluble proteins were incubated at 23°C and pH 8.0 (20 mM Tris-HCl) with hydrogen as an electron donor and 0.5 mM Tc(VII). Tc(VII), Rf = 0.7; Tc(V), Rf = 0.0.
