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. Author manuscript; available in PMC: 2011 Aug 17.
Published in final edited form as: Biochemistry. 2010 Aug 17;49(32):6866–6876. doi: 10.1021/bi100650m

Figure 10.

Figure 10

Proposed mechanism for MCRBES radical formation. “X” is the species with the doublet radical EPR spectrum and the long wavelength absorption. Further isotope substitution and spectroscopic experiments are required to identify “X”, as described in the text.