Purification of specific chromatin domains from single-copy gene loci in Saccharomyces cerevisiae

Methods Mol Biol. 2014:1094:329-41. doi: 10.1007/978-1-62703-706-8_26.

Abstract

Most methods currently available for the analysis of chromatin in vivo rely on a priori knowledge of putative chromatin components or their posttranslational modification state. The isolation of defined native chromosomal regions provides an attractive alternative to obtain a largely unbiased molecular description of chromatin. Here, we describe a strategy combining site-specific recombination at the chromosome with an efficient tandem affinity purification protocol to isolate a single-copy gene locus from the yeast Saccharomyces cerevisiae. The method allows robust enrichment of a targeted chromatin domain, making it amenable to compositional, structural, and biochemical analyses. This technique appears to be suitable to obtain a detailed description of chromatin composition and specific posttranslational histone modification state at virtually any genomic locus in yeast.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biochemistry / methods*
  • Cell Proliferation
  • Chromatin / metabolism*
  • Chromatography, Affinity
  • DNA, Fungal / metabolism
  • Fungal Proteins / metabolism
  • Gene Dosage*
  • Genes, Fungal / genetics*
  • Genetic Loci*
  • Immunoglobulin G / metabolism
  • Magnetic Phenomena
  • Microspheres
  • Saccharomyces cerevisiae / cytology
  • Saccharomyces cerevisiae / genetics*
  • Saccharomyces cerevisiae / growth & development

Substances

  • Chromatin
  • DNA, Fungal
  • Fungal Proteins
  • Immunoglobulin G