Evidence map›Paper›PMID 32237079›Full record

ArticleThe EMBO journal2020

Autonomous aggregation suppression by acidic residues explains why chaperones favour basic residues.

Bert Houben, Emiel Michiels, Meine Ramakers, Katerina Konstantoulea, Nikolaos Louros, Joffré Verniers, Rob van der Kant, Matthias De Vleeschouwer, Nuno Chicória, Thomas Vanpoucke and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.6field-weighted citation impact, top 10% of its field
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

22 citing papers in PubMed, 42 citations in OpenAlex.

  1. Employing deep mutational scanning in theProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  2. Chemical Synthesis of Medin via a Removable Aggregation-Suppressing Linker.Journal of peptide science : an official publication of the European Peptide Society · 2025
    Article
  3. Article
  4. Article
  5. CsgA gatekeeper residues control nucleation but not stability of functional amyloid.Protein science : a publication of the Protein Society · 2024
    Article
  6. Article
  7. Article
  8. Mechanisms and pathology of protein misfolding and aggregation.Nature reviews. Molecular cell biology · 2023
    Review
  9. Article
  10. HSP70-binding motifs function as protein quality control degrons.Cellular and molecular life sciences : CMLS · 2023
    Article
  11. Article
  12. Article
  13. The effect of mutation on an aggregation-prone protein: An in vivo, in vitro, and in silico analysis.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  14. Article
  15. A3D 2.0 Update for the Prediction and Optimization of Protein Solubility.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 1 institution in 1 country.

Bert HoubenSwitch Laboratory, VIB Center for Brain and Disease Research, Leuven, Belgium.ORCID 0000-0002-6750-011X
Emiel MichielsSwitch Laboratory, VIB Center for Brain and Disease Research, Leuven, Belgium.ORCID 0000-0001-6065-5576
Meine RamakersSwitch Laboratory, VIB Center for Brain and Disease Research, Leuven, Belgium.
Katerina KonstantouleaSwitch Laboratory, VIB Center for Brain and Disease Research, Leuven, Belgium.ORCID 0000-0002-0960-6274
Nikolaos LourosSwitch Laboratory, VIB Center for Brain and Disease Research, Leuven, Belgium.ORCID 0000-0002-4030-1022
Joffré VerniersSwitch Laboratory, VIB Center for Brain and Disease Research, Leuven, Belgium.
Rob van der KantSwitch Laboratory, VIB Center for Brain and Disease Research, Leuven, Belgium.ORCID 0000-0003-3639-9749
Matthias De VleeschouwerSwitch Laboratory, VIB Center for Brain and Disease Research, Leuven, Belgium.
Nuno ChicóriaSwitch Laboratory, VIB Center for Brain and Disease Research, Leuven, Belgium.
Thomas VanpouckeSwitch Laboratory, VIB Center for Brain and Disease Research, Leuven, Belgium.ORCID 0000-0002-4942-6315
Rodrigo GallardoSwitch Laboratory, VIB Center for Brain and Disease Research, Leuven, Belgium.ORCID 0000-0003-1584-3564
Joost SchymkowitzSwitch Laboratory, VIB Center for Brain and Disease Research, Leuven, Belgium.ORCID 0000-0003-2020-0168
Frederic RousseauSwitch Laboratory, VIB Center for Brain and Disease Research, Leuven, Belgium.ORCID 0000-0002-9189-7399
VIB-KU Leuven Center for Brain & Disease Research · BE

Funding

Agentschap voor Innovatie door Wetenschap en Technologie (IWT) 141546Agentschap voor Innovatie door Wetenschap en Technologie (IWT) 60839Belgian Science Policy Office (BELSPO) P7/16EC | H2020 | H2020 Priority Excellent Science | H2020 European Research Council (ERC) 647458Fonds Wetenschappelijk Onderzoek (FWO) G051817N and 12P0919NHercules Foundation AKUL/15/34-G0H1716NVlaams Instituut voor Biotechnologie (VIB) C0401
6 · The paper itself

Abstract

Many chaperones favour binding to hydrophobic sequences that are flanked by basic residues while disfavouring acidic residues. However, the origin of this bias in protein quality control remains poorly understood. Here, we show that while acidic residues are the most efficient aggregation inhibitors, they are also less compatible with globular protein structure than basic amino acids. As a result, while acidic residues allow for chaperone-independent control of aggregation, their use is structurally limited. Conversely, we find that, while being more compatible with globular structure, basic residues are not sufficient to autonomously suppress protein aggregation. Using Hsp70, we show that chaperones with a bias towards basic residues are structurally adapted to prioritize aggregating sequences whose structural context forced the use of the less effective basic residues. The hypothesis that emerges from our analysis is that the bias of many chaperones for basic residues results from fundamental thermodynamic and kinetic constraints of globular structure. This also suggests the co-evolution of basic residues and chaperones allowed for an expansion of structural variety in the protein universe.

Indexed as

Escherichia coliEscherichia coli ProteinsHSP70 Heat-Shock ProteinsProtein AggregatesHydrophobic and Hydrophilic InteractionsEscherichia coli ProteinsHSP70 Heat-Shock ProteinsProtein AggregatesaggregationgatekeepersHsp70protein folding

Identifiers

PMID32237079
PMCPMC7265246
OpenAlexW3014477180

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.