用于在变异分类中使用的主导多基解化六合素的全基因组识别
Henoke K Shiferaw1, Celine S Hong1, David N Cooper2
1Center for Precision Health Research, National Human Genome Research Institute, National Institutes of Health, 50 South Drive, Bethesda, MD 20892, United States.
Human molecular genetics
|August 22, 2023
概括
这项研究在全基因组范围内定义了功能性重要的多基解信号六合体,确定了更好地研究与人类疾病相关的遗传变异的资源. 这些六合体变体现在可以系统地分析临床相关性.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 生物信息学是一种生物信息学.
背景情况:
- 多基化对mRNA稳定性和细胞质输出至关重要.
- 聚基化信号六合体是这个过程的关键,但在门德尔乱中,变体是未被认可的.
- 目前的六合体定义有限,阻碍了临床分析.
研究的目的:
- 为了在全基因组范围内定义功能性重要的多基解信号,hexamers.
- 在研究和临床环境中创建一个用于询问六合体变体的资源.
- 建立对致病性六合体变体的分类标准.
主要方法:
- 确定了主要的多A位点 (pPAS) 和相关的六合体,每基因使用>50%.
- 评估人口约束和变体负担 (CADD分数) 对于占主导地位的六合体.
- 对六合体变体的质疑外体数据和分析转录组数据 (3'RNA-seq) 进行功能影响.
主要成果:
- 定义了4532种占主导地位的六合体,具有显著的人口约束和更高的CADD分数.
- 在1477个个体中确定了65种主要的六合体变异.
- 观察到,占主导地位的六合素变异导致了替代多基 (38%) 和延长的转录 (12%).
结论:
- 鉴定出主要的六合体是用于查询基因组数据的宝贵资源.
- 这些六合体的变体是人类疾病病原性变异的强有力的候选者.
- 拟议的致病性标准将有助于对六合体变体进行临床用途的分类.
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