Chromatin immunoprecipitation (ChIP)

JH Jiao-Jiao Hu
WS Wei Song
SZ Shao-Dan Zhang
XS Xiao-Hui Shen
XQ Xue-Mei Qiu
HW Hua-Zhang Wu
PG Pi-Hai Gong
SL Sen Lu
ZZ Zhu-Jiang Zhao
MH Ming-Liang He
HF Hong Fan
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The ChIP experiments were performed using an EZ ChIP™ Chromatin Immunoprecipitation Kit for cell line samples (Millipore, USA) according to the manufacturer’s instructions. Briefly, the crosslinked chromatin DNA were sonicated into 200 to 1000 bp fragments followed by the fixed with 1% formaldehyde. Then immunoprecipitation using an anti-H3K27me3 (Millipore, USA) antibody, Histone H3 (Abcam, USA) and normal mouse IgG used as the negative control. The primers used for the amplification of p27 and Foxc1 promoter DNA fragments are listed in Supplementary Table 1.

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