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- Title
Phosphorylation of linker histones regulates ATP-dependent chromatin remodeling enzymes.
- Authors
Horn, Peter J; Carruthers, Lenny M; Logie, Colin; Hill, David A; Solomon, Mark J; Wade, Paul A; Imbalzano, Anthony N; Hansen, Jeffrey C; Peterson, Craig L
- Abstract
Members of the ATP-dependent family of chromatin remodeling enzymes play key roles in the regulation of transcription, development, DNA repair and cell cycle control. We find that the remodeling activities of the ySWI/SNF, hSWI/SNF, xMi-2 and xACF complexes are nearly abolished by incorporation of linker histones into nucleosomal array substrates. Much of this inhibition is independent of linker histone-induced folding of the arrays. We also find that phosphorylation of the linker histone by Cdc2/Cyclin B kinase can rescue remodeling by ySWI/SNF. These results suggest that linker histones exert a global, genome-wide control over remodeling activities, implicating a new, obligatory coupling between linker histone kinases and ATP-dependent remodeling enzymes.
- Publication
Nature structural biology, 2002, Vol 9, Issue 4, p263
- ISSN
1072-8368
- Publication type
Journal Article
- DOI
10.1038/nsb776