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. Author manuscript; available in PMC: 2016 Jul 23.
Published in final edited form as: Methods Enzymol. 2015 Jul 23;563:341–361. doi: 10.1016/bs.mie.2015.06.030

Figure 4.

Figure 4

Low-frequency EPR of 63Cu(II) and naturally abundant Cu(II). The dotted lines highlight the g⊥ regions of the spectra and the dashed lines highlight the “extra absorption” or “overshoot” regions.