1)江苏科技大学计算机学院,镇江 212100;2)西北工业大学自动化学院,信息融合技术教育部重点实验室,西安 710072;3)陕西师范大学人工智能与计算机学院,西安 710119
陕西省自然科学基础研究计划(2024JCYBQN-0624)和陕西师范大学中央高校基本科研业务费(GK202406008)资助项目。
1)School of Computer, Jiangsu University of Science and Technology, Zhenjiang 212100, China;2)MOE Key Laboratory of Information Fusion Technology, School of Automation, Northwestern Polytechnical University, Xi’an 710072, China;3)School of Artificial Intelligence and Computer Science, Shaanxi Normal University, Xi’an 710119, China
This work was supported by grants from the Natural Science Basic Research Program of Shaanxi, China (2024JCYBQN-0624) and the Fundamental Research Funds for the Central Universities, Shaanxi Normal University (GK202406008).
目的 N6-甲基腺苷(m6A)作为最丰富的mRNA表观修饰,在基因表达、mRNA翻译等各种mRNA代谢过程中起到重要作用。然而,由于缺乏有效的计算方法,目前还无法从计算角度识别哪些m6A甲基化修饰位点能够通过m6A RNA结合蛋白1(YTHDF1)介导的生物学机理调控mRNA翻译效率。鉴于此,本文设计了全新的计算方法(m6ATEpre),预测特定细胞系中调控翻译效率的m6A甲基化修饰位点。方法 m6ATEpre整合多组学数据,如MeRIP-seq数据、PAR-CLIP数据和Ribo-seq数据,针对含m6A修饰位点的序列提出了全新的特征表示策略,并采用自动编码器有效获取嵌入特征信息。结果 在HeLa细胞系测序数据集的各种实验结果表明,相比其他方法,m6ATEpre在调控翻译效率的m6A位点预测方面取得了较高的预测性能。生物信息分析表明,在HeLa细胞系中调控翻译效率的m6A位点具有特异性,并揭示了YTHDF1介导的m6A甲基化调控翻译效率的潜在机制。此外,在HEK293T细胞系测序数据集中进行预测和分析,发现调控翻译效率的m6A位点具有细胞特异性。结论 m6ATEpre是一个及时有效的计算工具,有助于对m6A甲基化调控翻译效率机制的理解。m6ATEpre的代码和相关数据可以从
Objective The most prevalent mRNA modification, N6-methyladenosine (m6A) plays an important role in various RNA metabolism, including gene expression and translation. By recruiting different “reader” proteins and their cofactors, m6A modification can affect messenger RNA (mRNA) degradation, splicing, nuclear export and translation. However, the selective mechanism by which m6A sites regulate mRNA translation through m6A reader YTHDF1 binding remains poorly understood, due to a lack of computational methods for identifying context-specific m6A sites that regulate translation. To address this, we developed a novel computational framework named m6ATEpre, the first tool designed to predict cell-specific m6A sites that regulate translation efficiency.Methods m6ATEpre integrates multi-omics data, introduces a novel feature representation strategy for m6A site sequences, and employs an autoencoder to effectively capture embedded feature representations. Specifically, m6ATEpre first integrated MeRIP-seq data and PAR-CLIP data through overlapping m6A sites with YTHDF1 binding sites and identified YTHDF1-mediated m6A sites. Then, m6ATEpre detected the translation gene by analyzing the Ribo-seq data under YTHDF1 knockdown vs control condition. Genes whose translation is mediated by YTHDF1 in an m6A-dependent manner were identified by a significant decrease in translation efficiency upon YTHDF1 knockdown. Next, we proposed a binary vector indicating the presence or absence of YTHDF1 binding motifs to characterize each m6A site sequence. This represents a novel feature representation strategy for m6A sites. m6ATEpre utilized the autoencoder to extract the potentially important feature representations and constructed a multilayer perceptron neural networks model to predict potential m6A sites that regulating translation efficiency.Results A comprehensive evaluation of m6ATEpre was conducted through a series of experiments. We compared its performance against that of a similar prediction task model, as well as other classifiers. The results indicate that m6ATEpre achieved the best prediction performance. In addition, we analyzed different feature representation strategies and performed ablation experiments to validate the rationality of the model design. The results demonstrate that our proposed feature representation strategy has a greater advantage in improving prediction performance. In the HeLa cell line, bioinformatic analysis of the metagene distribution and sequence minimum free energy of m6A sites regulating translation efficiency (m6A-reg-TE sites) revealed their specific properties in translation regulation. Functional enrichment analysis indicated that m6A-reg-TE genes are associated with specific biological processes and KEGG pathways. By integrating the binding sites of YTHDF1 co-factors with m6A-reg-TE sites, we revealed that YTHDF1-mediated and m6A-dependent translation efficiency regulation requires the cooperation of multiple translation-regulatory RNA-binding proteins among its co-factors in the HeLa cell line. Furthermore, we extended our predictions to the dataset of the HEK293T cell line. Similarly, bioinformatic analysis of the metagene distribution and functional enrichment revealed the cell-specific characteristic of these predicted m6A-reg-TE sites in HEK293T cells. Likewise, integrated analysis of multiple YTHDF1 co-factors and m6A-reg-TE sites predicted in the HEK293T cell line reveals their m6A-dependent cooperation in regulating translation efficiency.Conclusion m6ATEpre is a timely tool that will advance our understanding of the mechanisms of m6A regulation in translation efficiency. The source code and datasets used in this work can be downloaded from
张腾,张明,张绍武,刘恋. m6ATEpre:基于多组学数据整合的YTHDF1介导调控翻译效率的m6A修饰位点预测[J].生物化学与生物物理进展,2026,53(4):1087-1102 ZHANG Teng, ZHANG Ming, ZHANG Shao-Wu, LIU Lian. m6ATEpre: Predicting YTHDF1-mediated mRNA Translation Efficiency Regulated by m6A Sites via Multi-omics Data Integration[J]. Progress in Biochemistry and Biophysics,2026,53(4):1087-1102
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