Transcription Factor Chromatin Immunoprecipitation in Endothelial Cells

Philip Kitchen, Kevin Gaston, Padma-Sheela Jayaraman

Research output: Chapter in Book/Published conference outputChapter (peer-reviewed)peer-review

Abstract

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.

Original languageEnglish
Title of host publicationAngiogenesis
EditorsA.V. Benest
PublisherSpringer
Pages257-275
Number of pages19
Volume2441
ISBN (Electronic)978-1-0716-2059-5
ISBN (Print)978-1-0716-2058-8
DOIs
Publication statusPublished - 1 Jan 2022

Publication series

NameMethods in Molecular Biology
Volume2441
ISSN (Print)1064-3745
ISSN (Electronic)1940-6029

Keywords

  • ChIP sequencing
  • Chromatin
  • HHEX
  • Immunoprecipitation
  • PRH
  • Transcription factor
  • qPCR

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