5EJX:
reference: Crystal structure of the pristine peroxidase ferryl center and its relevance to proton-coupled electron transfer., Chreifi G, Baxter EL, Doukov T, Cohen AE, McPhillips SE, Song J, Meharenna YT, Soltis SM, Poulos TL, Proc Natl Acad Sci U S A. 2016 Jan 19. pii: 201521664. PMID: 26787871

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