کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1936637 | 1050697 | 2007 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A SWI/SNF- and INO80-dependent nucleosome movement at the INO1 promoter A SWI/SNF- and INO80-dependent nucleosome movement at the INO1 promoter](/preview/png/1936637.png)
Transcriptional activation in yeast INO1 chromatin was studied using the indirect end-labeling technique. INO1 chromatin is organized into an ordered, overlapping nucleosomal array under repressing conditions. Nucleosome positions were only disrupted at the promoter region under inducing conditions in the presence of SWI/SNF and INO80. Mutants lacking either remodeler demonstrated identical positioning patterns as the wild type under repressing conditions. This indicates that these two remodelers are responsible and essential for local nucleosomal mobilization at the INO1 promoter. The area of local nucleosome movement is consistent with the previously identified region of histone deacetylation activity. In light of these findings, we suggest that nucleosomes subject to local mobilization are also targets for local histone modifications.
Journal: Biochemical and Biophysical Research Communications - Volume 361, Issue 4, 5 October 2007, Pages 974–979