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Learning transcriptional networks from the integration of ChIP–chip and expression data in a non-parametric model

机译:通过非参数模型中的ChIP芯片和表达数据集成来学习转录网络

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摘要

>Results: We have developed LeTICE (Learning Transcriptional networks from the Integration of ChIP–chip and Expression data), an algorithm for learning a transcriptional network from ChIP–chip and expression data. The network is specified by a binary matrix of transcription factor (TF)–gene interactions partitioning genes into modules and a background of genes that are not involved in the transcriptional regulation. We define a likelihood of a network, and then search for the network optimizing the likelihood.We applied LeTICE to the location and expression data from yeast cells grown in rich media to learn the transcriptional network specific to the yeast cell cycle. It found 12 condition-specific TFs and 15 modules each of which is highly represented with functions related to particular phases of cell-cycle regulation.>Availability: Our algorithm is available at >Contact: >Supplementary Information: are available at Bioinformatics online.
机译:>结果:我们开发了LeTICE(从ChIP芯片和表达数据的集成中学习转录网络),一种从ChIP芯片和表达数据中学习转录网络的算法。该网络由转录因子(TF)的二元矩阵指定-基因相互作用将基因分为模块和不参与转录调控的基因背景。我们定义网络的可能性,然后搜索使可能性最优化的网络。我们将LeTICE应用于富媒体中生长的酵母细胞的位置和表达数据,以了解特定于酵母细胞周期的转录网络。它发现了12个特定于条件的TF和15个模块,每个模块都具有与细胞周期调控的特定阶段相关的功能。>可用性:我们的算法可在>联系方式: >补充信息:可在线访问生物信息学。

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