Transcription Factor Chromatin Immunoprecipitation in Endothelial Cells.
Transcription Factor Chromatin Immunoprecipitation in Endothelial Cells.
复制标题
内皮细胞中转录因子染色质免疫沉淀。
DOI:
10.1007/978-1-0716-2059-5_20
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Kitchen P
中科院分区:
文献类型:
--
作者:
Kitchen P
Interactions between DNA and proteins are crucial for the regulation of gene expression. Chromatin immunoprecipitation (ChIP) is a powerful technique that allows the study of specific protein–DNA interactions in cultured cells and fresh or fixed tissue. Chromatin is isolated and sheared, and antibodies against the protein(s) of interest are used to isolate specific protein–DNA complexes. Subsequent analysis by real-time polymerase chain reaction (qPCR) or next-generation sequencing (NGS) allows identification and quantification of the co-purified DNA fragments, and NGS also gives insight into the genomic binding sites of a protein. Here we describe a cross-linking ChIP (X-ChIP) protocol, based around the example of a myc-tagged Proline-Rich Homeodomain (PRH) protein expressed in human umbilical vein endothelial cells. We also describe how to analyse specific known or suspected binding sites using quantitative PCR as well as how to analyse genome-wide binding from ChIP sequencing data.
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