ZC3H14通过与外子-内子边界和3' UTR结合来促进反复结合
Qiqi Li1, Gang Yang2, Bingbing Ren3
1Department of Clinical Laboratory, The First Affiliated Hospital of USTC, The RNA Institute, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China (USTC), Hefei 230027, China.
Molecular cell
|October 26, 2024
概括
结合RNA的蛋白质ZC3H14通过结合外子-内子边界并与结合体相结合,促进循环RNA (circRNA) 生物发生. 这种保存机制对男性生育能力至关重要,因为ZC3H14缺乏会破坏精子生成.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 在RNA生物学,RNA生物学.
背景情况:
- 循环RNAs (circRNAs) 是生物过程和疾病的关键调节者.
- 现有的关于circRNA生物发生的研究主要集中在侧翼内核上.
- 在circRNA形成中RNA结合蛋白的作用需要进一步阐明.
研究的目的:
- 为了确定circRNA生物发生的新型调节者.
- 为了研究RNA结合蛋白ZC3H14在circRNA形成中的功能.
- 探索ZC3H14,circRNA生物发生和男性生育能力之间的联系.
主要方法:
- 全基因组的CRISPR淘汰屏幕用于识别ZC3H14.
- 生物化学测试以确定ZC3H14结合点和机制 (二元化,拼接体协会).
- 酵母淘汰和Zc3h14缺乏的小鼠模型来评估circRNA水平和生育能力.
主要成果:
- ZC3H14被确定为circRNA生物发生的保守调节者.
- ZC3H14结合了外子-内子边界和3' UTRs,通过结合体协会促进了圆环RNA的形成.
- 酵母和Zc3h14淘汰模式显示 circRNA水平降低.
- 在小鼠中,Zc3h14缺乏导致精子生成中断和丸circRNA水平降低.
- 人类ZC3H14表达与非阻塞性亚精子相关.
结论:
- ZC3H14是一种保护性蛋白质,对于调节circRNA反向拼接至关重要.
- ZC3H14和circRNA生物发生与男性生殖健康有关.
- ZC3H14代表了男性不孕症的潜在治疗标.
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