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Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
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Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a  complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
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Author Spotlight: Impact of Intergenic Interactions on Disease-Identifying Dark Biomarkers
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从细胞转录组学数据中推断细胞类型特定的基因调控网络,使用GeneLink.

Wei Zhang1, Bowen Shao1, Wenrui Li2

  • 1Department of Biomedical Engineering, School of Control Science and Engineering, Shandong University, Jinan, Shandong 250061, China.

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概括

GeneLink+通过改进深度学习模型,准确地推断细胞类型特定的基因调节网络 (ctGRNs). 这一框架增强了对发育和疾病中的基因调节的理解.

关键词:
基因+链接+链接细胞类型特定的基因调控网络.动态注意力机制 动态注意力机制剩余的-GATv2 块块.翻译学 翻译学 翻译学 翻译学

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科学领域:

  • 计算生物学 计算生物学
  • 基因组学就是基因组学.
  • 生物信息学是一种生物信息学.

背景情况:

  • 细胞类型特定的基因调节网络 (ctGRNs) 对于理解发育和癌症等生物过程至关重要.
  • 从转录基因数据推断ctGRNs是具有挑战性的,因为数据稀疏性,细胞异质性和深度学习模型中的过度平滑.

研究的目的:

  • 介绍一下GeneLink+,一种使用定向图形链接预测进行ctGRN推理的先进框架.
  • 通过解决现有的深度学习方法的局限性,提高ctGRN推理的准确性和可解释性.

主要方法:

  • GeneLink+采用剩余-GATv2块,结合注意力机制和剩余连接,以保存基因特征并减轻信息丢失.
  • 一个修改后的点产品方案,具有可学习的权重,以适应方式对基因对进行精确的因果边缘归因.

主要成果:

  • 在七个基准数据集中,GeneLink+在预测准确度和生物相关性方面超过或与最先进的方法相匹配.
  • 该框架成功地确定了血液免疫细胞,阿尔茨海默病和乳腺癌的转录组数据中的关键调节关系.

结论:

  • 基因链接+为从各种转录基因数据中推断ctGRN提供了强大的和可解释的解决方案.
  • 该框架推进了复杂的生物系统和疾病中的基因调节研究.