Skip to Main content Skip to Navigation
Journal articles

RSC remodeling of oligo-nucleosomes: an atomic force microscopy study.

Abstract : The 'remodels structure of chromatin' (RSC) complex is an essential chromatin remodeling factor that is required for the control of several processes including transcription, repair and replication. The ability of RSC to relocate centrally positioned mononucleosomes at the end of nucleosomal DNA is firmly established, but the data on RSC action on oligo-nucleosomal templates remains still scarce. By using atomic force microscopy (AFM) imaging, we have quantitatively studied the RSC-induced mobilization of positioned di- and trinucleosomes as well as the directionality of mobilization on mononucleosomal template labeled at one end with streptavidin. AFM imaging showed only a limited set of distinct configurational states for the remodeling products. No stepwise or preferred directionality of the nucleosome motion was observed. Analysis of the corresponding reaction pathways allows deciphering the mechanistic features of RSC-induced nucleosome relocation. The final outcome of RSC remodeling of oligosome templates is the packing of the nucleosomes at the edge of the template, providing large stretches of DNA depleted of nucleosomes. This feature of RSC may be used by the cell to overcome the barrier imposed by the presence of nucleosomes.
Complete list of metadata

Cited literature [42 references]  Display  Hide  Download
Contributor : Martin Castelnovo Connect in order to contact the contributor
Submitted on : Thursday, December 2, 2010 - 10:03:11 AM
Last modification on : Thursday, November 26, 2020 - 9:34:32 AM
Long-term archiving on: : Thursday, March 3, 2011 - 2:36:03 AM


Files produced by the author(s)


Distributed under a Creative Commons Attribution - NonCommercial 4.0 International License




Fabien Montel, Martin Castelnovo, Hervé Menoni, Dimitar Angelov, Stefan Dimitrov, et al.. RSC remodeling of oligo-nucleosomes: an atomic force microscopy study.. Nucleic Acids Research, Oxford University Press, 2011, 39 (7), pp.2571-9. ⟨10.1093/nar/gkq1254⟩. ⟨ensl-00539866⟩



Record views


Files downloads