复杂生物化学网络中的流：低度节点的作用
Flows in complex biochemical networks: Role of low degree nodes
摘要：
代谢网络有两个通常被认为是不相关的特性：一，它们具有代谢反应，其单一敲除对生物体是致命的;二，它们具有形成功能模块的相关反应集。在这篇评论中，我们认为，必要性和模块性似乎出现作为一个结果相同的结构属性：低度代谢物的存在。这一观察允许从关于代谢网络的纯结构信息预测（a）作为病原微生物中潜在药物靶标的基本代谢反应和（b）生物网络内的调节模块。
英文摘要：
Metabolic networks have two properties that are generally regarded as unrelated: One, they have metabolic reactions whose single knockout is lethal for the organism, and two, they have correlated sets of reactions forming functional modules. In this review we argue that both essentiality and modularity seem to arise as a consequence of the same structural property: the existence of low degree metabolites. This observation allows a prediction of (a) essential metabolic reactions which are potential drug targets in pathogenic microorganisms and (b) regulatory modules within biological networks, from purely structural information about the metabolic network.
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