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. Author manuscript; available in PMC: 2016 Apr 25.
Published in final edited form as: J Am Chem Soc. 2015 Jul 15;137(29):9302–9314. doi: 10.1021/jacs.5b03524

Figure 4.

Figure 4

4-Aminophenol (4-AP) perturbation of the MCD spectra of G4DFsc (A) and 3His-G4DFsc(Mut3) (B) in the absence (red) and presence (green) of 4-AP. All spectra taken at 2 K and 7 T (baseline subtracted). Protein concentrations were ~1 mM with 15-fold excess substrate.