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Mechanisms and Regulation of RNA Condensation in RNP Granule Formation.

Authors
  • Tauber, Devin1
  • Tauber, Gabriel2
  • Parker, Roy3
  • 1 Department of Biochemistry, University of Colorado Boulder, Boulder, CO 80308, USA.
  • 2 Department of Biochemistry, Stanford University School of Medicine, Stanford, CA 94305, USA.
  • 3 Department of Biochemistry, University of Colorado Boulder, Boulder, CO 80308, USA; Howard Hughes Medical Institute, University of Colorado Boulder, Boulder, CO 80308, USA. Electronic address: roy.pa[email protected]
Type
Published Article
Journal
Trends in Biochemical Sciences
Publisher
Elsevier
Publication Date
Sep 01, 2020
Volume
45
Issue
9
Pages
764–778
Identifiers
DOI: 10.1016/j.tibs.2020.05.002
PMID: 32475683
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Ribonucleoprotein (RNP) granules are RNA-protein assemblies that are involved in multiple aspects of RNA metabolism and are linked to memory, development, and disease. Some RNP granules form, in part, through the formation of intermolecular RNA-RNA interactions. In vitro, such trans RNA condensation occurs readily, suggesting that cells require mechanisms to modulate RNA-based condensation. We assess the mechanisms of RNA condensation and how cells modulate this phenomenon. We propose that cells control RNA condensation through ATP-dependent processes, static RNA buffering, and dynamic post-translational mechanisms. Moreover, perturbations in these mechanisms can be involved in disease. This reveals multiple cellular mechanisms of kinetic and thermodynamic control that maintain the proper distribution of RNA molecules between dispersed and condensed forms. Copyright © 2020 Elsevier Ltd. All rights reserved.

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