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. 2014 Aug 20;4:6137. doi: 10.1038/srep06137

Figure 1. Heme coordination structure of the HDP–heme complex.

Figure 1

(A) The structure of Hz. Dotted lines represent hydrogen bonds. (B) EPR spectra of heme-bound HDP (trace a) and free heme (trace b) at 5 K at pH 5.6. EPR spectrum measurements were carried out at the X-band (9.50 GHz) microwave frequency. (C) Resonance Raman spectrum of heme-bound HDP in pH 5.6 at room temperature. The excitation wavelength was set at 410 nm.