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dCTCF sites are enriched for three distinct DNA motifs, including a similar but novel secondary motif enriched for insulator protein CP190. (A) Position weight matrices for primary target sequence and secondary target sequences obtained by MEME-ChIP, and confirmed with Weeder 1.3. Number of sites provided represents sites in which dCTCF summits are ±150 bp from the DNA motif. (B) Percentage of dCTCF sites in which CP190 is present when containing each DNA motif.
