用少量的DNA进行全基因组双硫酸盐测序
Hiroki Tsutsui1, Ueli Grossniklaus2
1Department of Plant and Microbial Biology & Zurich-Basel Plant Science Center, University of Zurich, Zurich, Switzerland.
Methods in molecular biology (Clifton, N.J.)
|November 22, 2024
概括
双硫酸盐后适配器标记 (PBAT) 增强了单细胞的DNA甲基化分析. 这种方法最大限度地减少了DNA损失,使敏感研究能够进行,即使输入材料最小.
科学领域:
- 基因组学就是基因组学.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 分子生物学分子生物学
背景情况:
- 全基因组二硫酸盐测序 (WGBS) 是DNA甲基化概况的标准.
- 在WGBS中固有的双硫酸盐反应导致显著的DNA降解.
- 这种降解限制了具有有限DNA输入的样品的分析.
研究的目的:
- 介绍和详细介绍二硫酸盐后适配器标记 (PBAT) 方法.
- 为了从微小的DNA量,如单细胞,进行敏感的DNA甲基化分析.
- 为了克服与传统的二硫酸盐测序相关的DNA降解问题.
主要方法:
- PBAT涉及在双硫酸盐处理后添加适配器序列以保护DNA.
- 该协议集成了二硫酸盐转换,预放大和适配器标记.
- 它是针对哺乳动物单细胞双硫酸盐测序 (scBS-seq) 的优化.
- 程序被简化为一个单一的管子,以减少DNA损失.
主要成果:
- 在图书馆准备过程中,PBAT显著降低了DNA损失.
- 该方法可以进行高度敏感的DNA甲基化分析.
- 它有效分析含有很少量起始DNA的样本,包括单细胞应用.
结论:
- PBAT是一种强大的协议,用于敏感的全基因组DNA甲基化分析.
- 它对于单细胞表观基因组研究特别有价值.
- 该方法克服了低输入样本传统二硫酸盐测序的关键局限性.
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