category
Molecular Cell
date
Mar 4, 2026
slug
status
Published
summary
发现少量CBX2分子通过自聚类引发PRC2凝聚体组装,揭示了染色质修饰中蛋白质相分离机制与基因沉默的新调控模式。
tags
蛋白质组学
type
Post

📄 原文题目

Self-clustering of three CBX2 molecules drives PRC2 to promote facultative heterochromatinization of Polycomb target genes

🔗 原文链接

💡 AI 核心解读

发现少量CBX2分子通过自聚类引发PRC2凝聚体组装,揭示了染色质修饰中蛋白质相分离机制与基因沉默的新调控模式。

📝 英文原版摘要

Ingersoll et al. uncover that approximately three CBX2 molecules drive PRC2 clustering and H3K27me3 deposition in mESCs. This process supports a model in which few CBX2 molecules self-cluster on chromatin, initiating condensate assembly while concurrently recruiting and stabilizing PRC2 at nucleation sites for H3K27me3 deposition and cellular differentiation.
PRC2辅助亚基模拟H3K27me3以限制Polycomb结构域的扩散XSER1长链非编码RNA作为增强子RNA通过促进染色质环形成赋予水稻抗病性
Loading...