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用SSiNGLe-P1方法对内源单链DNA进行全基因组选

Dongyang Xu¹, Yu Huang¹, Lingcong Luo¹

¹Institute of Genomics, School of Medicine, Huaqiao University, 668 Jimei Road, Xiamen 361021, China.

International journal of molecular sciences

|August 12, 2023

概括

研究人员开发了SSiNGLe-P1以全基因组地图内源单链DNA (essDNA). 这种方法揭示了essDNA的essDNA.

科学领域:

基因组学就是基因组学.
分子生物学分子生物学
生物化学生物化学

背景情况:

内生单链DNA (essDNA) 的形成通过各种细胞过程发生.
essDNA对基因组完整性的作用和影响尚未完全理解.
哺乳动物基因组包含核和线粒体DNA中的essDNA.

研究的目的:

开发一种高通量方法,用于对essDNA区域的全基因组识别.
在人类线粒体和核基因组中描述essDNA分布.
调查essDNA本地化的功能影响.

主要方法:

建立了SSiNGLe-P1 (通过有限的P1消化进行单链核酸识别) 方法.
利用P1内核酶进行有限的消化,以隔离essDNA区域.
应用了essDNA的高通量全基因组分析方法.

主要成果:

线粒体基因组中的essDNA档案支持mtDNA复制的链位移模型.
核essDNA区域在DNA复制和R循环的起源处得到丰富.
鉴定到的essDNA区域的很大一部分没有注释,这表明了新的功能元素.

结论:

该SSiNGLe-P1方法使得有效的全基因组essDNA映射.
essDNA在线粒体DNA复制和核基因组组织中发挥作用.
未注释的essDNA区域可能代表以前未被发现的功能性基因组元素.

关键词:

在P1内核酶中.这是一个R环.这是内源单链DNA.线粒体DNA复制的复制活动主办人活动主办人复制的起源复制的起源

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