期刊
CELL SYSTEMS
卷 12, 期 6, 页码 509-521出版社
CELL PRESS
DOI: 10.1016/j.cels.2021.05.020
关键词
-
资金
- European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program [743269]
The ability of biological systems to adapt to persistent stimuli and achieve robust perfect adaptation (RPA) is discussed in the article, highlighting the importance of structural constraints in regulating networks to maintain stability. Understanding these constraints can provide insight into regulatory biological complexity beyond implementation details.
A distinctive feature of many biological systems is their ability to adapt to persistent stimuli or disturbances that would otherwise drive them away from a desirable steady state. The resulting stasis enables organisms to function reliably while being subjected to very different external environments. This perspective concerns a stringent type of biological adaptation, robust perfect adaptation (RPA), that is resilient to certain network and parameter perturbations. As in engineered control systems, RPA requires that the regulating network satisfy certain structural constraints that cannot be avoided. We elucidate these ideas using biological examples from systems and synthetic biology. We then argue that understanding the structural constraints underlying RPA allows us to look past implementation details and offers a compelling means to unravel regulatory biological complexity.
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