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arXiv 0901.0280q-bio.MNq-bio.SC
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生化网络输入输出轨迹间的互信息

Mutual information between in- and output trajectories of biochemical networks

Filipe Tostevin, Pieter Rein ten Wolde

摘要:

生化网络可以响应时变信号的时间特性。为了理解生物化学网络如何可靠地传输信息,我们必须考虑如何将作为时间函数的输入信号(输入轨迹)映射到输出轨迹上。在这里,我们使用高斯模型估计输入和输出轨迹之间的互信息。我们研究了E.大肠杆菌可以将配体浓度的信息传递给鞭毛马达,并找到使信息传递速率最大化的输入功率谱。

英文摘要:

Biochemical networks can respond to temporal characteristics of time-varying signals. To understand how reliably biochemical networks can transmit information we must consider how an input signal as a function of time--the input trajectory--can be mapped onto an output trajectory. Here we estimate the mutual information between in- and output trajectories using a Gaussian model. We study how reliably the chemotaxis network of E. coli can transmit information on the ligand concentration to the flagellar motor, and find the input power spectrum that maximizes the information transmission rate.

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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