Figure 1.
LdpA contains redox-active iron-sulfur clusters. (A) UV–visible absorption spectra of the purified recombinant protein. Ox, as-isolated reductant-free LdpA sample; Red, sample reduced with 2 mM dithionite. (B) 10 K X-band EPR spectra of the purified recombinant protein. Red, sample reduced with 2 mM dithionite; Ox, sample oxidized with thionin. Parameters are as described in Materials and methods.