Chromatin profiling by directly sequencing small quantities of immunoprecipitated DNA.

Chromatin profiling by directly sequencing small quantities of immunoprecipitated DNA.
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DOI:
10.1038/nmeth.1404
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发表时间:
2010-01
期刊:
影响因子:
48
通讯作者:
Bernstein, Bradley E.
Bernstein, Bradley E.
中科院分区:
生物学1区
文献类型:
--
作者:
Goren, Alon;Ozsolak, Fatih;Shoresh, Noam;Ku, Manching;Adli, Mazhar;Hart, Chris;Gymrek, Melissa;Zuk, Or;Regev, Aviv;Milos, Patrice M.;Bernstein, Bradley E.

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染色质结构和转录因子定位可以通过对基因组DNA进行测序而在全基因组范围内进行测定,所述基因组DNA通过蛋白质占有率或其他性质而分级。然而,目前的技术涉及多个步骤,引入偏见和低效率。在这里,我们应用单分子方法直接测序染色质免疫沉淀的DNA与最小的样品操作。这种方法只适用于50皮克的DNA,因此应该有助于从有限的细胞群体绘制染色质图谱。
Chromatin structure and transcription factor localization can be assayed genome-wide by sequencing genomic DNA fractionated by protein occupancy or other properties. However, current technologies involve multiple steps that introduce bias and inefficiency. Here we apply a single-molecule approach to directly sequence chromatin immunoprecipitated DNA with minimal sample manipulation. This method is compatible with just 50 picograms of DNA and should thus facilitate charting chromatin maps from limited cell populations.
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