3'UTR变异的全基因组功能查揭示了人类疾病和演变的因果变异
Dustin Griesemer1, James R Xue2, Steven K Reilly2
1Broad Institute of MIT and Harvard, Cambridge, MA 02143, USA; Program in Bioinformatics and Integrative Genomics, Harvard Medical School, Boston, MA 02115, USA; Department of Anesthesiology, Perioperative, and Pain Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA.
Cell
|September 17, 2021
概括
我们开发了一种新的测定方法 (MPRAu) 来研究3'未翻译区域 (3'UTR) 变异,确定了与人类特征和疾病相关的数百种因果变异. 这种方法揭示了miRNA调节和进化适应等机制.
科学领域:
- 遗传学
- 分子生物学
- 基因组学
背景情况:
- 3'非转化区域 (3'UTR) 变异与人类的特征和疾病有关,但因果变异的理解不足.
- 识别这些变异的功能影响对于理解对健康和进化的遗传贡献至关重要.
研究的目的:
- 开发和应用3'UTR的大规模并行报告测定 (MPRAu) 来全面测定3'UTR变异.
- 识别与人类特征,疾病和进化适应相关的因果性3'UTR变异.
- 在基对分辨率下阐明3'UTR变异函数的分子机制.
主要方法:
- 对3'UTR进行大规模并行报告测试 (MPRAu) 的开发.
- 用MPRAu测定6个人类细胞系中的12173个3'UTR变体.
- 整合全基因组关联研究 (GWAS) 数据和机理学研究的内源性等位基因替代.
主要成果:
- MPRAu成功测试了数千个3'UTR变异,揭示了简单的序列往往驱动了调节活动.
- 数百个具有精细映射的表型关联的3'UTR因果变异被提名.
- 发现了特定的机制,包括与代谢适应相关的LEPR中富含AU的元素和破坏TRIM14miRNA调节的变体.
结论:
- MPRAu是剖析3'UTR变异功能和识别因果变异的强大工具.
- 该研究提名了许多3'UTR变体作为人类特征,疾病和进化适应的潜在驱动因素.
- 了解3'UTR调节是解释遗传变异及其对人类生物学影响的关键.
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