MMGAT:一个图表注意力网络框架,用于ATAC-seq寻找动机.
Xiaotian Wu1,2, Wenju Hou1, Ziqi Zhao1
1Key Laboratory of Symbol Computation and Knowledge Engineering of Ministry of Education, College of Computer Science and Technology, Jilin University, Changchun, 130012, China.
BMC bioinformatics
|April 20, 2024
概括
这项研究介绍了MMGAT,这是一种用于识别ATAC-seq数据中的转录因子结合位点的新型图形注意力网络. MMGAT准确地发现了不同长度的多重图案,在人类和小鼠数据集上表现优于现有的工具.
科学领域:
- 基因组学就是基因组学.
- 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:
- 使用测序 (ATAC-seq) 数据检测转化酶可访问染色质的动机发现对于理解基因调节至关重要.
- 目前的深度学习方法,如CNN和GNN在识别不同长度的ATAC-seq动机和高效汇总节点信息方面存在局限性.
研究的目的:
- 开发一个先进的深度学习框架,以准确地发现ATAC-seq动机.
- 克服现有的CNN和GNN方法在动机发现方面的局限性.
主要方法:
- 开发了MMGAT,一种使用注意力机制的新型图表注意力网络框架.
- MMGAT利用序列和k-mer节点的注意系数,以及k-mer同时发生的概率.
- 创建了一个用户友好的Web服务器,MMGAT-S,以托管方法和结果.
主要成果:
- MMGAT在人类ATAC-seq数据集上表现出卓越的表现,在精度,回忆,F1_score,ACC,AUC和PRC方面取得了最高分.
- 在人类数据集中确定了389个更高质量的动机,在小鼠数据集中确定了356个.
- 在小鼠ATAC-seq数据的六个指标上获得最高分,证实了多种物种验证.
结论:
- MMGAT为ATAC-seq动机识别提供了一个强大的工具,大大推进了基因组学研究.
- MMGAT-S 网络服务器提高了研究人员的可访问性.
- 开源代码和Web服务器可供公众使用.
相关概念视频
Protein Networks
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
RNA-seq
RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while microarray-based...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while microarray-based...


