ChIP assays were performed using an EZ-CHIP KIT according to the manufacturer's instructions (Millipore, USA). EZH2 antibody was obtained from Abcam. H3 trimethyl Lys 27 antibody was from Millipore. The ChIP primer sequences are listed in Supplementary Table S1. Quantification of immunoprecipitated DNA was performed using qPCR with SYBR Green Mix (Takara). ChIP data is presented as a percentage relative to the input DNA using the equation 2[Input Ct- Target Ct] ×0.1 × 100 [19 (link)].
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