Mechanisms of action and regulation of ATP-dependent chromatin-remodelling complexes

Nucleosome-remodelling complexes can slide or eject histones, or incorporate histone variants, but they share an ATPase–translocase 'motor' and a common DNA translocation mechanism. In a unifying 'hourglass' model of remodeller function, the different remodeller subfamilies use different modules for targeting to nucleosomes but converge on a DNA translocation mechanism and then diverge again to achieve various outcomes.