arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1606.08607q-bio.MNmath.DSphysics.bio-phq-bio.SC
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化学反应网络中的定域律

Law of localization in chemical reaction networks

Takashi Okada, Atsushi Mochizuki

摘要:

在活细胞中,化学反应通过共享其产物和底物而连接,并形成复杂的网络,例如代谢途径。在这里,我们开发了一个理论来预测的灵敏度,即浓度和流量的扰动酶的反应,从网络结构单独。结果表明,反应表现出两种特征模式,$localization$和$hierarchy$。我们提出了一个一般定理连接灵敏度与网络拓扑结构,解释这些特征模式。我们的研究结果表明,网络拓扑结构是生物鲁棒性的起源。最后,我们提出了一个策略,以确定真正的网络从实验测量。

英文摘要:

In living cells, chemical reactions are connected by sharing their products and substrates, and form complex networks, e.g. metabolic pathways. Here we developed a theory to predict the sensitivity, i.e. the responses of concentrations and fluxes to perturbations of enzymes, from network structure alone. Responses turn out to exhibit two characteristic patterns, $localization$ and $hierarchy$. We present a general theorem connecting sensitivity with network topology that explains these characteristic patterns. Our results imply that network topology is an origin of biological robustness. Finally, we suggest a strategy to determine real networks from experimental measurements.

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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