5WV3:
reference: Structural basis of activation of mammalian heme peroxidases., Singh PK, Iqbal N, Sirohi HV, Bairagya HR, Kaur P, Sharma S, Singh TP, Prog Biophys Mol Biol. 2018 Mar;133:49-55. doi: 10.1016/j.pbiomolbio.2017.11.003., Epub 2017 Nov 22. PMID: 29174286

This OCA Structure page
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