Awad S and Hassan AH (2008) The Swi2/Snf2 bromodomain is important for the full binding and remodeling activity of the SWI/SNF complex on H3- and H4-acetylated nucleosomes. Ann N Y Acad Sci 1138():366-75
Abstract: The SWI/SNF chromatin-remodeling complex contains a bromodomain in its Swi2/Snf2 subunit that helps tether it to acetylated promoter nucleosomes. To study the importance of this bromodomain in the SWI/SNF complex, we have compared the nucleosome-binding and the chromatin-remodeling activities of the SWI/SNF to a mutant complex that lacks the Swi2/Snf2 bromodomain. Here we show that the SWI/SNF complex deleted of the Swi2/Snf2 bromodomain cannot bind to SAGA- or NuA4-acetylated nucleosomes as well as the wild-type complex. Moreover, we show that this reduced binding leads to partial remodeling of these acetylated nucleosome templates by the Deltabromodomain SWI/SNF complex. These results demonstrate that the Swi2/Snf2 bromodomain is required for the full binding and functional activity of the SWI/SNF complex on H3- and H4-acetylated nucleosomes.
|Status: Published||Type: Journal Article | Research Support, Non-U.S. Gov't||PubMed ID: 18837912|
Topics addressed in this paper
Number of different genes curated to this paper: 5
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|Protein Sequence Features|
|Protein-Nucleic Acid Interactions|
|Techniques and Reagents|