Noise in cellular signaling pathways: causes and effects.
Noise in cellular signaling pathways: causes and effects.
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DOI:
10.1016/j.tibs.2012.01.001
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发表时间:
2012-05
影响因子:
13.8
通讯作者:
Arold, Stefan T.
中科院分区:
文献类型:
--
作者:
Ladbury, John E.;Arold, Stefan T.
关键词:
Noise caused by stochastic fluctuations in genetic circuits (transcription and translation) is now appreciated as a central aspect of cell function and phenotypic behavior. Noise has also been detected in signaling networks, but the origin of this noise and how it shapes cellular outcomes remain poorly understood. Here, we argue that noise in signaling networks results from the intrinsic promiscuity of protein-protein interactions, and that this noise has shaped cellular signal transduction. Features promoted by the presence of this molecular signaling noise include multimerization and clustering of signaling components, pleiotropic effects of gross changes in protein concentration, and a probabilistic rather than linear view of signal propagation.
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