Cited by 182RNA Research and SplicingProtein Structure and DynamicsProtein Kinase Regulation and GTPase Signaling

The DOI matches its Crossref record; 38 of the 38 references it cites were found in a registry or an index.

Protein Phase Separation Provides Long-Term Memory of Transient Spatial Stimuli

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Abstract

Protein/RNA clusters arise frequently in spatially regulated biological processes, from the asymmetric distribution of P granules and PAR proteins in developing embryos to localized receptor oligomers in migratory cells. This co-occurrence suggests that protein clusters might possess intrinsic properties that make them a useful substrate for spatial regulation. Here, we demonstrate that protein droplets show a robust form of spatial memory, maintaining the spatial pattern of an inhibitor of droplet formation long after it has been removed. Despite this persistence, droplets can be highly dynamic, continuously exchanging monomers with the diffuse phase. We investigate the principles of biophysical spatial memory in three contexts: a computational model of phase separation; a novel optogenetic system where light can drive rapid, localized dissociation of liquid-like protein droplets; and membrane-localized signal transduction from clusters of receptor tyrosine kinases. Our results suggest that the persistent polarization underlying many cellular and developmental processes could arise through a simple biophysical process, without any additional biochemical feedback loops.

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Crossref · 10.1016/j.cels.2018.05.002

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Metadata

Authors
Dine, E., Gil, A. A., Uribe, G., Brangwynne, C. P., & Toettcher, J. E.
Affiliations
Princeton University (US)
Corresponding author
Toettcher, Jared E.
Venue
Cell Systems
Publisher
Elsevier BV
Published
2018-06
Volume
6
Issue
6
Pages
655-663.e5
ISSN
2405-4712 (ISSN-L)
OpenAlex
W2952516695
Cited by
182
References
38
Citations by year
2026: 13 · 2025: 24 · 2024: 26 · 2023: 16 · 2022: 29 · 2021: 32 · 2020: 19 · 2019: 17 · 2018: 6
FWCI
6.58
Type
journal article
Language
en
Open access
Locations
  • Cell Systems (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Stony Brook University
  • Children's Hospital Los Angeles (DP2EB024247, U01DA040601)
  • Doris Duke Charitable Foundation
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
Keywords
protein phase separation, liquid-liquid phase separation, protein droplets, spatial memory, spatial regulation, receptor tyrosine kinase signaling, polarization, P granules, PAR proteins, asymmetric cell division
MeSH terms
Computer Simulation, Membrane Proteins, Neoplasm Proteins, Proteins, RNA, Organelles, Signal Transduction, Feedback, Physiological, Memory, Long-Term, Optogenetics, Spatial Memory

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