Signalling ballet in space and time.

Signalling ballet in space and time.
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DOI:
10.1038/nrm2901
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发表时间:
2010-06
期刊:
Nature reviews. Molecular cell biology
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尽管我们已经积累了大量的信号网络组件目录,但我们对紧急网络结构的时空控制的理解滞后。人们开始探索整个基因组的动态行为,但对空间行为的分析仍然局限于单个蛋白质。挑战在于揭示细胞如何整合时间和空间信息来确定特定的生物功能。主要发现是分子信号机器的发现,如Ras纳米簇,空间活动梯度和涉及转录反馈的灵活网络电路。它们揭示了时空组织的设计原则,这些原则对网络功能和细胞命运决定至关重要。
Although we have amassed extensive catalogues of signalling network components, our understanding of the spatiotemporal control of emergent network structures has lagged behind. Dynamic behaviour is starting to be explored throughout the genome, but analysis of spatial behaviours is still confined to individual proteins. The challenge is to reveal how cells integrate temporal and spatial information to determine specific biological functions. Key findings are the discovery of molecular signalling machines such as Ras nanoclusters, spatial activity gradients and flexible network circuitries that involve transcriptional feedback. They reveal design principles of spatiotemporal organization that are crucial for network function and cell fate decisions.
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