Analysis of reconstituted chromatin using a solid-phase approach

Methods Mol Biol. 2009:523:11-25. doi: 10.1007/978-1-59745-190-1_2.

Abstract

Complex experimental strategies involving in vitro reconstituted chromatin or simple chromatin interaction studies are much facilitated by immobilizing the nucleosomal arrays to paramagnetic beads. Chromatin-containing beads can be retrieved from a reaction mix solution on a magnet fast and quantitatively, effectively separating bound, loosely attached and unbound components efficiently. This chapter details a convenient strategy for immobilization of linear plasmid DNA on streptavidin-coated beads, the reconstitution of chromatin on such beads and some fundamental handling procedures.

MeSH terms

  • Animals
  • Chromatin / metabolism*
  • DNA / metabolism
  • Dialysis
  • Drosophila melanogaster / metabolism
  • Molecular Biology / methods*

Substances

  • Chromatin
  • DNA