Evidence map›Paper›PMID 29132128›Full record

ArticleRedox biology2018

A single cysteine post-translational oxidation suffices to compromise globular proteins kinetic stability and promote amyloid formation.

Patrizia Marinelli, Susanna Navarro, Ricardo Graña-Montes, Manuel Bañó-Polo, María Rosario Fernández, Elena Papaleo, Salvador Ventura

Abstract read
In one paragraph

Article in Redox biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Current Understanding of Protein Aggregation in Neurodegenerative Diseases.International journal of molecular sciences · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Patrizia MarinelliInstitut de Biotecnologia i de Biomedicina and Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
Susanna NavarroInstitut de Biotecnologia i de Biomedicina and Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
Ricardo Graña-MontesInstitut de Biotecnologia i de Biomedicina and Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
Manuel Bañó-PoloInstitut de Biotecnologia i de Biomedicina and Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
María Rosario FernándezInstitut de Biotecnologia i de Biomedicina and Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
Elena PapaleoComputational Biology Laboratory, Danish Cancer Society Research Center, 2100 Copenhagen, Denmark.
Salvador VenturaInstitut de Biotecnologia i de Biomedicina and Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain. Electronic address: salvador.ventura@uab.es.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Oxidatively modified forms of proteins accumulate during aging. Oxidized protein conformers might act as intermediates in the formation of amyloids in age-related disorders. However, it is not known whether this amyloidogenic conversion requires an extensive protein oxidative damage or it can be promoted just by a discrete, localized post-translational modification of certain residues. Here, we demonstrate that the irreversible oxidation of a single free Cys suffices to severely perturb the folding energy landscape of a stable globular protein, compromise its kinetic stability, and lead to the formation of amyloids under physiological conditions. Experiments and simulations converge to indicate that this specific oxidation-promoted protein aggregation requires only local unfolding. Indeed, a large scale analysis indicates that many cellular proteins are at risk of undergoing this kind of deleterious transition; explaining how oxidative stress can impact cell proteostasis and subsequently lead to the onset of pathological states.

Indexed as

Protein StabilityAmino Acid SequenceAmyloidCysteineHumansKineticsModels, MolecularOxidation-ReductionProtein AggregatesProtein FoldingProtein Processing, Post-TranslationalRNA Splicing FactorsSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsAmyloidCysteineProtein AggregatesRNA Splicing FactorsSaccharomyces cerevisiae ProteinsURN1 protein, S cerevisiaeOxidative stressPost-translational modificationProtein aggregationProtein misfoldingProtein oxidation

Identifiers

PMID29132128
PMCPMC5684091

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.