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Differential allelic TF binding activities in fresh unaffected thyroid tissue. (A) ChIP assays showing CEBPb and TFAP2A binding in the regions of enhancers 1–3. (B) Relative allelic TF binding activities in enhancers 1–3 were determined using SNaPshot assay for SNPs rs7864322, rs12352658, and rs1075994, respectively. Differential allelic binding activities were calculated and normalized to “Input.” **P < 0.005 (Student t test).
