让错误的意义:变异性病原性预测中的挑战和机遇
Ivan Molotkov1,2, Elaine R Mardis1,2, Mykyta Artomov1,2
1The Steve and Cindy Rasmussen Institute for Genomic Medicine, Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH 43215, USA.
Disease models & mechanisms
|December 16, 2024
概括
计算工具可以预测变异性病原性,以帮助临床遗传学. 基于AlphaFold的模型AlphaMissense显示出希望,但需要改进可解释性和精度,以便更好地解释变体.
科学领域:
- 遗传学 遗传学 是一个
- 生物信息学是一种生物信息学.
- 计算生物学 计算生物学
背景情况:
- 计算工具对于预测临床遗传学中变异性病原性至关重要.
- 新兴的模型,在没有先前分类的情况下进行训练,旨在减少偏见并改善对新型变异的概括.
- 使用AlphaFold的AlphaMissense是该领域的最新发展.
研究的目的:
- 评估AlphaMissense的性能和局限性,AlphaMissense是一种用于变种病原性预测的新型计算工具.
- 讨论AlphaMissense在克服当前临床变异解释数据库中存在的偏见方面的潜力.
- 重点关注可解释性和精度的计算变量解释工具的改进领域.
主要方法:
- 利用基于AlphaFold的深度学习模型AlphaMissense,用于变种病原性预测.
- 与功能和临床数据对比AlphaMissense的性能.
- 分析了AlphaMissense的局限性,包括缺乏解释性和疾病特异性.
主要成果:
- 在基准指标中AlphaMissense表现强,超过了许多监督模型.
- 该模型显示了对未分类变体的概括的潜力.
- 确定的局限性,如缺乏可解释性,无法评估功能影响和非疾病特异性得分.
结论:
- 在计算变异病原性预测方面,AlphaMissense代表了重大进步.
- 尽管AlphaMissense具有优势,但它也有局限性,需要进一步研究.
- 提高计算工具的解释性和疾病特异性对于增强临床遗传学至关重要.
相关概念视频
Single Nucleotide Polymorphisms-SNPs
14.0K
A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
14.0K
Comparing Copy Number Variations and SNPs
17.2K
Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
17.2K
Viral Mutations
32.1K
A mutation is a change in the sequence of bases of DNA or RNA in a genome. Some mutations occur during replication of the genome due to errors made by the polymerase enzymes that replicate DNA or RNA. Unlike DNA polymerase, RNA polymerase is prone to errors because it is not capable of “proofreading” its work. Viruses with RNA-based genomes, like HIV, therefore accrue mutations faster than viruses with DNA-based genomes. Because mutation and recombination provide the raw material...
32.1K
Sensitivity, Specificity, and Predicted Value
180
In healthcare diagnostics, laboratory tests play a crucial role in identifying and diagnosing a wide range of medical conditions. However, interpreting test results is not always straightforward. An abnormal test result does not always confirm the presence of a disease, just as a normal result does not guarantee its absence. To assess the reliability of these diagnostic tools, healthcare practitioners rely on two key statistical indicators: sensitivity and specificity.
Sensitivity is the...
Sensitivity is the...
180


