Chromatin folding into higher order structure.

Chromatin folding into higher order structure.
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染色质折叠成更高级的结构。

DOI:
10.1016/s0006-3495(86)83570-6
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发表时间:
1986
影响因子:
3.4
通讯作者:
H. Eisenberg
H. Eisenberg
中科院分区:
生物学3区
文献类型:
--
作者:
K. Greulich;J. Ausió;D. Seger;E. Wachtel;H. Eisenberg

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方法通过用微球菌核酸酶在 100 mM KCl、50 mM Tris-HCl (pH 8.0)、1 mM CaCl2 中将细胞核消化至 1% 酸溶解度来制备鸡红细胞染色质。通过添加EDTA至5mM终止反应并将反应混合物冷却至冰温。以各种方式裂解细胞核并提取染色质 (3)。通过在 40°C、25 mM NaCl、5 mM Tris-HCl (pH 8.0)、0.1 mM EDTA 中的蔗糖梯度上沉淀,获得充分表征的染色质级分。研究了染色质组分在 NaCl、NaCl 和 MgCl2 混合物以及各种其他二价阳离子中的溶解度 (6)。
METHODSChromatin from chicken erythrocytes was prepared by digesting nuclei to-1% acid solubility with micrococcal nuclease in 100 mM KCI, 50 mM Tris-HCl (pH 8.0), 1 mM CaC12. The reaction was stopped by addition of EDTA to 5 mM and the reaction mixture cooled to ice temperature. Nuclei were lysed and chromatin extracted in various ways (3). Wellcharacterized chromatin fractions were obtained by sedimentation on a sucrose gradient at 40C, in 25 mM NaCl, 5 mM Tris-HCI (pH 8.0), 0.1 mM EDTA. The solubility of the chromatin fractions was studied in NaCl, in mixtures of NaCl and MgC12, and in a variety of other divalent cations (6).
DOI: 10.1021/bi00534a025
发表时间: 1982
期刊: Biochemistry
影响因子: 2.9
作者:
Fulmer,AW;Bloomfield,VA
通讯作者: Bloomfield,VA