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. Author manuscript; available in PMC: 2008 Jun 20.
Published in final edited form as: J Am Chem Soc. 2008 May 28;130(24):7592–7606. doi: 10.1021/ja710067d

Figure 5.

Figure 5

K-edge XAS spectra of Ni(II)-RcnR (left), WT (orange) and Cys35Ala (brown) and Co(II)-RcnR (right), WT (lt. blue), and Cys35Ala (dk. blue) in 300 mM NaBr buffer. Top: XANES spectra: insets are enlargements of the peaks associated with the 1s → 3d and 1s → 4pz transitions. Bottom: Unfiltered EXAFS data and fits (black). The fits shown are from Table 1 and correspond to fits 5 and 10 for WT and Cys35Ala Ni(II)-RcnR, and fits 15 and 20 for WT and Cys35Ala Co(II)-RcnR, respectively.