跨RNAm:通过基于变压器的可解释多标签深度学习模型来识别十二种类型的RNA修饰
概括
这项研究介绍了TransRNAm,这是一种深度学习工具,可以同时准确预测多个RNA修改. 它增强了可解释性,有助于发现RNA修饰机制.
科学领域:
- 计算生物学 计算生物学
- 分子生物学分子生物学
- 生物信息学是一种生物信息学.
背景情况:
- 准确识别RNA修饰部位对于理解RNA功能和调节至关重要.
- 深度学习方法对RNA修饰预测有希望,但通常只能预测单个修饰类型,缺乏可解释性.
- 现有的计算工具难以预测多个RNA修改并解释它们的预测.
研究的目的:
- 开发一种准确和可解释的深度学习方法,用于同时预测多个RNA修饰.
- 解决现有方法在处理多种修改类型和提供可解释结果方面的局限性.
- 为了揭示基底的RNA修饰部位形成的基于序列的机制.
主要方法:
- 提出了一种新的基于变压器的深度学习方法,命名为TransRNAm.
- 利用变压器从RNA序列中提取上下文特征.
- 使用卷积神经网络 (CNN) 学习与RNA修改相关的高潜特征表示.
- 从变压器与CNN集成的自我注意力机制,以增强功能学习.
主要成果:
- 跨RNAm可以准确地同时预测多个RNA修饰.
- 该方法有效地捕获关键核酸位,有助于RNA修饰预测.
- 综合方法揭示了不同RNA修饰类型之间的潜在关联.
- TransRNAm提供了可解释的预测,突出了关键序列特征.
结论:
- TransRNAm为预测多个RNA修饰提供了一个准确和可解释的解决方案.
- 该工具可以帮助理解RNA修饰站点的基于序列的形成机制.
- 这项工作推进了RNA修饰分析和解释的计算方法.
相关概念视频
RNA Interference
26.1K
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
26.1K
Improving Translational Accuracy
11.6K
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
11.6K
lncRNA - Long Non-coding RNAs
2.8K
2.8K
RNA Editing
9.0K
RNA editing is a post-transcriptional modification where a precursor mRNA (pre-mRNA) nucleotide sequence is changed by base insertion, deletion, or modification. The extent of RNA editing varies from a few hundred bases, in mitochondrial DNA of trypanosomes, to a just single base, in nuclear genes of mammals. Even a single base change in the pre-mRNA can convert a codon for one amino acid into the codon for another amino acid or a stop codon. This type of re-coding can significantly affect the...
9.0K
Regulation of Expression at Multiple Steps
943
The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the...
943
Experimental RNAi
6.2K
RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
6.2K


