Signalling scaffolds and local organization of cellular behaviour

Nature Reviews. Molecular Cell Biology
Lorene K Langeberg, John D Scott

Abstract

Cellular responses to environmental cues involve the mobilization of GTPases, protein kinases and phosphoprotein phosphatases. The spatial organization of these signalling enzymes by scaffold proteins helps to guide the flow of molecular information. Allosteric modulation of scaffolded enzymes can alter their catalytic activity or sensitivity to second messengers in a manner that augments, insulates or terminates local cellular events. This Review examines the features of scaffold proteins and highlights examples of locally organized groups of signalling enzymes that drive essential physiological processes, including hormone action, heart rate, cell division, organelle movement and synaptic transmission.

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Citations

Feb 16, 2016·Cellular Signalling·Myoungkun JeoungEmilia Galperin
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