4U77:
reference: Chromatin insulator factors involved in long-range DNA interactions and their role in the folding of the Drosophila genome., Vogelmann J, Le Gall A, Dejardin S, Allemand F, Gamot A, Labesse G, Cuvier O, Negre N, Cohen-Gonsaud M, Margeat E, Nollmann M, PLoS Genet. 2014 Aug 28;10(8):e1004544. doi: 10.1371/journal.pgen.1004544., eCollection 2014 Aug. PMID: 25165871

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