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arXiv 2011.06478q-bio.MNphysics.bio-ph
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主调节子作为基因表达状态的序参量

Master regulators as order parameters of gene expression states

Andreas Krämer

摘要:

细胞类型特异性基因表达模式被表示为Hopfield神经网络模型的记忆状态。结果表明,该模型的序参数可以解释为主转录调节因子的浓度,形成并发的正反馈回路与大量的下游调控基因。序参数自由能,然后定义一个表观遗传景观,其中局部极小值对应于稳定的细胞状态。该模型适用于造血背景下的基因表达数据。

英文摘要:

Cell type-specific gene expression patterns are represented as memory states of a Hopfield neural network model. It is shown that order parameters of this model can be interpreted as concentrations of master transcription regulators that form concurrent positive feedback loops with a large number of downstream regulated genes. The order parameter free energy then defines an epigenetic landscape in which local minima correspond to stable cell states. The model is applied to gene expression data in the context of hematopoiesis.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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