转录噪声,基因激活和SAGA和中介尾巴的作用,使用核酸重编码单细胞RNA-seq测量
Jeremy A Schofield1, Steven Hahn1
1Fred Hutchinson Cancer Center, Seattle, WA 98109, USA.
Cell reports
|August 5, 2024
概括
我们开发了一种新的单细胞RNA测序方法,用于研究酵母中的基因表达动态. 这项技术揭示了大多数基因是构成性表达的,而另一些基因则表现出转录性爆发,特别是在特定的基因类和S阶段.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 系统生物学 系统生物学
背景情况:
- 基因表达调节是复杂的,涉及转录噪声和爆发.
- 了解基因激活和促进子活动的动态对于细胞过程至关重要.
- 特定的转录因子和辅因子在调节基因表达方面发挥着关键作用.
研究的目的:
- 开发和应用一个时间解析的新生单细胞RNA测序 (RNA-seq) 方法.
- 量化基因特异性转录噪声和Saccharomyces cerevisiae中活跃基因的比例.
- 为了研究协因子SAGA和MED Tail在基因调节中的作用.
主要方法:
- 时间解析的新生单细胞RNA测序 (RNA-seq).
- 对转录噪声和活性基因部分的分析.
- 对辅助因子SAGA和MED的耗尽实验尾巴.
主要成果:
- 大多数S. cerevisiae中的基因表现出近构成性表达;一个子集显示转录性爆发.
- 转录噪声在辅因子/辅激剂-冗余 (CR) 基因中最高,特别是含有TATA的基因.
- 在S阶段,基因转录转移到激活,杂和爆发模式.
- SAGA和MED尾部共因子对于激活CR基因很重要,但在转录噪声中起到很小的作用.
结论:
- 开发的RNA-seq方法允许对转录动态进行详细分析.
- 酵母中的基因表达具有构成性和爆发性转录模式的特征.
- 基因调节包括转录活动和噪声中的细胞周期依赖的开关.
- SAGA和MED Tail是CR基因中促进体激活的关键调节剂.
关键词:
科普:分子生物学 分子生物学调解人 调解人 调解人它们中的一种是S. cerevisiae.萨加萨加 (SAGAGA) 是一个名为SAGA的游戏.爆发的爆发 爆发的爆发激活基因激活 基因激活一个单细胞RNA-seqq.转录 转录 是一种转录.转录噪声的转录噪声是什么?酵母酵母是一种酵母.更多相关视频
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