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. Author manuscript; available in PMC: 2021 Jun 24.
Published in final edited form as: Chem Rev. 2020 Mar 4;120(12):5107–5157. doi: 10.1021/acs.chemrev.9b00704

Figure 13.

Figure 13.

EPR spectra of the low field region of the thionine-titrated Av VFeB protein. A: VnfH-reduced VFeBR; B: VFeBR oxidized by 1.5 equivalents of thionine; C: VFeBR oxidized by 3 equivalents; D: VFeBR oxidized by 6 equivalents (VFeBOX). Reproduced with permission from ref 162. Copyright 1996 American Chemical Society.