编码分泌蛋白质的mRNAs的TENT5介导的多基化对于小鼠的游戏生成至关重要
Michał Brouze1,2, Agnieszka Czarnocka-Cieciura1, Olga Gewartowska1,3,4
1Laboratory of RNA Biology, International Institute of Molecular and Cell Biology, Warsaw, 02-109, Poland.
Nature communications
|June 22, 2024
概括
四个TENT5多聚A) 聚合酶对于小鼠的生育能力和生育过程至关重要. 这些酶通过聚基化mRNA来调节生卵和精子的产生,这些mRNA编码了内细胞网膜向蛋白质.
科学领域:
- 生殖生物学 生殖生物学
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
背景情况:
- 细胞质多基化对于生育过程至关重要,但在哺乳动物中涉及的特定酶尚未完全理解.
- 聚甲基聚合酶在mRNA代谢和基因表达调节中起着关键作用.
研究的目的:
- 阐明四个TENT5多聚A) 聚合酶在哺乳动物体育生殖和生育中的作用.
- 确定TENT5酶在生殖过程中的基质和调节机制.
主要方法:
- 对TENT5基因 (TENT5A,TENT5B,TENT5C,TENT5D) 的敲除和敲进小鼠模型的生成和分析.
- 评估生育能力,生育过程和卵细胞/精子生成的表型.
- 直接RNA测序以识别TENT5介导的多基化点.
- 序列动机分析和记者mRNA测定以确定基质特异性.
主要成果:
- TENT5B和TENT5C对于卵子发生是必不可少的和多余的;它们的双重淘汰会导致卵细胞退化.
- TENT5B功能的增加导致卵细胞染色体异常导致不孕.
- TENT5C和TENT5D对于精子生成的不同阶段至关重要,它们的淘汰会导致男性不育.
- TENT5A淘汰赛通过独立于生育生成的机制减少生育能力.
- TENT5酶多基酸mRNA编码了内分泌网膜向蛋白质,ER-领导序列是调节的关键决定因素.
结论:
- 四个TENT5多聚A聚合酶在哺乳动物的 oogenesis 和精子生成中发挥着不可或缺和独特的作用.
- 编码ER向蛋白质的mRNA的TENT5介导的多基解是游戏生成的关键调节机制.
- 了解TENT5功能,可以了解生育能力的分子基础以及不孕不育的潜在原因.
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