CEBPA相位分离链接转录活动和3D染色质枢纽
Marie Christou-Kent1, Sergi Cuartero2, Carla Garcia-Cabau3
1Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr. Aiguader 88, 08003 Barcelona, Spain.
Cell reports
|July 30, 2023
概括
转录因子CEBPA通过重塑基因组结构来驱动细胞身份变化. 这一过程涉及CEBPA经历相位分离,形成细胞转基因化所必需的核焦点和染色质枢纽.
科学领域:
- 分子生物学分子生物学
- 基因组学就是基因组学.
- 细胞生物学 细胞生物学
背景情况:
- 细胞身份依赖于转录因子 (TF) 活动和基因组组织.
- TFs如何影响三维 (3D) 基因组结构尚未完全理解.
研究的目的:
- 调查谱系指导TF CEBPA在塑造基因组架构中的作用.
- 阐明CEBPA在细胞转分化过程中影响3D基因组组织的机制.
主要方法:
- 研究诱导B细胞转变为巨细胞的转差.
- 分析了染色体区间切换和长距离染色体枢纽形成.
- 研究了CEBPA的内在无序区域 (IDR),用于体外相位分离 (PS).
- 在各种细胞类型中观察到CEBPA焦点和3D染色质枢纽.
主要成果:
- 在B细胞到巨细胞转差过程中,CEBPA驱动显著的染色体区切换和长距离染色体枢纽形成.
- 在CEBPA的IDR中,依赖于芳香残留物进行了体外分离.
- 在多种细胞类型的CEBPA结合区域观察到核CEBPA焦点和远程3D染色质枢纽.
- 通过CEBPA介导的PS可能是体内焦点形成的基础.
结论:
- CEBPA通过其IDR利用相分离来调节3D基因组组织.
- 这种机制可能在细胞身份确定过程中控制CEBPA功能.
关键词:
3D基因组组织 3D基因组组织在CEBPA中,它是CEBPA.科普:分子生物学 分子生物学染色质枢纽 染色质枢纽隔间 隔间 隔间 隔间凝结剂是一种凝结剂.基因调节 基因调节 基因调节阶段分离的相位分离.转录 转录 是一种转录.通过转差异化转化.更多相关视频
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