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. Author manuscript; available in PMC: 2011 Sep 15.
Published in final edited form as: J Am Chem Soc. 2010 Sep 15;132(36):12612–12618. doi: 10.1021/ja1019657

Figure 2.

Figure 2

EPR properties of FeVco (A) and FeMoco (B). Shown are the EPR spectra of the cofactors in NMF (black traces), in NMF plus 10 mM thiophenol (red traces), in NMF plus 10 mM 1,4-benzene dithiol (green traces) or within the wild-type proteins (blue traces). The FeVco samples were measured at 6 K, whereas the FeMoco samples were measured at 15 K. The power and temperature at which the spectra were taken were determined on the basis of power- and temperature-dependent experiments, where the spectra were saturated in intensity and optimized for line-width. The (apparent) g values are indicated. All cofactor and protein samples contained equimolar V or Mo.