在转录因子RUNX1中的编码变体的接口引导的表型化与SEUSSSS
bioRxiv : the preprint server for biology
|August 14, 2023
概括
研究癌症驱动基因需要了解突变. 类似Perturb-seq的SEUSS方法对115个RUNX1Runt域突变进行了分类,揭示了功能组及其对髓性白血病细胞的影响.
科学领域:
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
- 癌症研究 癌症研究
背景情况:
- 癌症驱动基因中的单氨基酸替代具有不清楚的后果.
- Perturb-seq是一种研究单个突变对细胞程序的影响的方法.
研究的目的:
- 为了研究突变在RUNX1 Runt域的物理接口的功能影响.
- 使用RNA配置文件将突变分类为不同的功能组.
主要方法:
- 部署SEUSS,一种类似Perturb-seq的方法,用于生成和测试RUNX1 Runt域中的突变.
- 测量了115个突变对单个骨髓性白血病细胞RNA概况的影响.
- 突变的分类为野生类型 (WT) 类型,功能丧失 (LOF) 类型和低形态组.
主要成果:
- 根据RNA配置文件,突变被分为WT类,LOF类和低形态组.
- 大多数功能性 (非WT类) 突变位于DNA结合部位.
- 低形变体表现出与神经生长因子和中性粒细胞因子招募相关的独特基因表达特征.
- 对差异表达基因附近的RUNX1结合动机,DNA可访问性变化得到了丰富.
结论:
- 该SEUSS方法有效地对RUNX1 Runt域中的突变进行分类.
- 准蛋白相互作用接口可以定义由氨基酸替代产生的表型.
- 了解突变后果对于癌症驱动基因研究至关重要.
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