4.7 Article

Conformational Freedom and Topological Confinement of Proteins in Biomolecular Condensates

期刊

JOURNAL OF MOLECULAR BIOLOGY
卷 434, 期 1, 页码 -

出版社

ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jmb.2021.167348

关键词

phase separation; biomolecular condensates; disordered proteins; topology; protein dynamics

资金

  1. US NIH/NIGMS [R35 GM130375]
  2. Belgian American Educational Foundation

向作者/读者索取更多资源

The emergence of biomolecular condensation and liquid-liquid phase separation (LLPS) adds complexity to our understanding of cell and molecular biology. Condensates are implicated in both physiology and human disease. Molecular characterization of condensates and their effects on constituent molecules is limited. Recent studies provide insights into the structure, dynamics, and interactions of proteins involved in condensation, which can help modulate the behavior of condensate systems. The unique environment of droplet surfaces and the effects of topological constraints and physical exclusion on condensate properties are also discussed.
The emergence of biomolecular condensation and liquid-liquid phase separation (LLPS) introduces a new layer of complexity into our understanding of cell and molecular biology. Evidence steadily grows indicating that condensates are not only implicated in physiology but also human disease. Macro-and mesoscale characterization of condensates as a whole have been instrumental in understanding their biological functions and dysfunctions. By contrast, the molecular level characterization of condensates and how condensates modify the properties of the molecules that constitute them thus far remain comparably scarce. In this minireview we summarize and discuss the findings of several recent studies that have focused on structure, dynamics, and interactions of proteins undergoing condensation. The mechanistic insights they provide help us identify the relevant properties nature and scientists can leverage to modulate the behavior of condensate systems. We also discuss the unique environment of the droplet surface and speculate on effects of topological constraints and physical exclusion on condensate properties.(c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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