6E8C:
reference: Crystal Structure of the Double Homeodomain of DUX4 in Complex with DNA., Lee JK, Bosnakovski D, Toso EA, Dinh T, Banerjee S, Bohl TE, Shi K, Orellana K, Kyba M, Aihara H, Cell Rep. 2018 Dec 11;25(11):2955-2962.e3. doi: 10.1016/j.celrep.2018.11.060. PMID: 30540931

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