Evidence map›Paper›PMID 37717144›Full record

ArticleBiophysical journal2024

Crowder titrations enable the quantification of driving forces for macromolecular phase separation.

Gaurav Chauhan, Anne Bremer, Furqan Dar, Tanja Mittag, Rohit V Pappu

Abstract read
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Article in Biophysical journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed.

  1. Article
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  5. Article
  6. A coarse-grained model for disordered proteins under crowded conditions.Protein science : a publication of the Protein Society · 2025
    Article
  7. Article
  8. Article
  9. Article
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  12. Dominance analysis to assess solute contributions to multicomponent phase equilibria.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  13. Article
  14. Article
  15. Molecular Crowding: Physiologic Sensing and Control.Annual review of physiology · 2024
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Gaurav ChauhanDepartment of Biomedical Engineering and Center for Biomolecular Condensates, James F. McKelvey School of Engineering, Washington University in St. Louis, St. Louis, Missouri.
Anne BremerDepartment of Structural Biology, St. Jude Children's Research Hospital, Memphis, Tennessee.
Furqan DarDepartment of Biomedical Engineering and Center for Biomolecular Condensates, James F. McKelvey School of Engineering, Washington University in St. Louis, St. Louis, Missouri.
Tanja MittagDepartment of Structural Biology, St. Jude Children's Research Hospital, Memphis, Tennessee.
Rohit V PappuDepartment of Biomedical Engineering and Center for Biomolecular Condensates, James F. McKelvey School of Engineering, Washington University in St. Louis, St. Louis, Missouri. Electronic address: pappu@wustl.edu.

Funding

Understanding the Sequence and Structural Determinants of Phase Behavior of ALS-Causing ProteinsR01NS121114 · NINDS · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI Tanja Mittag, ROHIT V PAPPU · 2021 to 2026
$3.8M
NINDS NIH HHS R01 NS121114
6 · The paper itself

Abstract

Macromolecular solubility is an important contributor to the driving forces for phase separation. Formally, the driving forces in a binary mixture comprising a macromolecule dissolved in a solvent can be quantified in terms of the saturation concentration, which is the threshold macromolecular concentration above which the mixture separates into coexisting dense and dilute phases. In addition, the second virial coefficient, which measures the effective strength of solvent-mediated intermolecular interactions provides direct assessments of solvent quality. The sign and magnitude of second virial coefficients will be governed by a combination of solution conditions and the nature of the macromolecule of interest. Here, we show, using a combination of theory, simulation, and in vitro experiments, that titrations of crowders, providing they are true depletants, can be used to extract the intrinsic driving forces for macromolecular phase separation. This refers to saturation concentrations in the absence of crowders and the second virial coefficients that quantify the magnitude of the incompatibility between macromolecules and the solvent. Our results show how the depletion-mediated attractions afforded by crowders can be leveraged to obtain comparative assessments of macromolecule-specific, intrinsic driving forces for phase separation.

Indexed as

Macromolecular SubstancesPhase SeparationSolubilitySolventsMacromolecular SubstancesSolvents

Identifiers

PMID37717144
PMCPMC11163301

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.