Previous work has implied that the ATPase domain of ISWI chromatin remodelers cooperates with a DNA-binding accessory domain to achieve remodeling. Quantitative biochemical analyses now reveal that the ATPase domain exists in two conformations and that DNA binding induces the catalytically active conformation. The ATPase domain has an intrinsic ability to bind and remodel nucleosomes, which suggests that it acts autonomously.
- Felix Mueller-Planitz
- Henrike Klinker
- Peter B Becker