کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1994367 | 1064773 | 2007 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Detection of interactions between nucleosome arrays mediated by specific core histone tail domains
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
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چکیده انگلیسی
The core histone tail domains play important roles in different stages of chromatin condensation. The tails are required for folding nucleosome arrays into secondary chromatin structures such as the â¼30Â nm diameter chromatin fiber and for mediating fiber-fiber interactions important for formation of tertiary chromatin structures. Crosslinking studies have demonstrated that inter-nucleosomal tail-DNA contacts appear in conjunction with salt-induced folding of nucleosome arrays into in higher order chromatin structures. However, since both folding of nucleosome arrays and fiber-fiber interactions take place simultaneously in >2-3Â mM MgCl2 such inter-nucleosome interactions may reflect short range (intra-array) or longer range (inter-array) interactions. Here, we describe a novel technique to specifically identify inter-array interactions mediated by the histone tail domains. In addition, we describe a new method for the preparation of H3/H4 tetramers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Methods - Volume 41, Issue 3, March 2007, Pages 278-285
Journal: Methods - Volume 41, Issue 3, March 2007, Pages 278-285
نویسندگان
Pu-Yeh Kan, Jeffrey J. Hayes,