HMGB1更喜欢与结构RNA相互作用,并调节HeLa细胞中的rRNA甲基化修饰和翻译
Meimei Liao1, Jiarui Cao2, Wen Chen3,4
1Department of Ultrasound Imaging, Renmin Hospital of Wuhan University, Hubei, Wuhan, People's Republic of China.
BMC genomics
|April 5, 2024
概括
高流动性B1组 (HMGB1) 蛋白与各种RNA分子结合,影响基因表达和蛋白质合成. 这一发现为HMGB1提供了新的见解.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 高流动性B1组 (HMGB1) 是一个涉及转录的核因子,以及在自身免疫和癌症等疾病中调解炎症反应的细胞因子.
- 假设HMGB1在核糖体生物生成中发挥作用,类似于其他HMGB蛋白.
研究的目的:
- 研究HMGB1在基因转录和RNA结合中的特定作用.
- 阐明HMGB1对核糖体生物发生和蛋白质合成的影响.
主要方法:
- 通过UV交联和深度测序 (iRIP-seq) 进行RNA免疫沉,以识别HMGB1结合的mRNA和RNA.
- RTL-P实验评估HMGB1过度表达对rRNA修饰和蛋白质合成的影响.
主要成果:
- HMGB1选择性地促进了参与转录调节,骨质细胞分化和亡的基因的转录.
- HMGB1与与信号传导,基因表达,轴突引导,焦点粘附和细胞外矩阵组织相关的mRNAs结合.
- HMGB1与结构RNA结合,包括28SrRNA和snoRNA,降低rRNA甲基化,并增强核糖体RNA表达和蛋白质合成.
结论:
- HMGB1与人类癌细胞中的多种RNA物种结合,有助于其在rRNA修饰,核糖体功能和基因表达中的作用.
- 这些发现为HMGB1在癌症和细胞分化中的功能提供了机制性的见解.
关键词:
28S rRNA 是一个28S rRNA.癌细胞 癌细胞 癌细胞这就是HMGB1的特点.甲基化修改的方法结构化RNA是一种结构性RNA.翻译 翻译 翻译 翻译这就是iRIP-seqq.这些snoRNAss.更多相关视频
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