Evidence map›Paper›PMID 31323035›Full record

ArticlePLoS computational biology2019

β-Methylamino-L-alanine substitution of serine in SOD1 suggests a direct role in ALS etiology.

Elizabeth A Proctor, David D Mowrey, Nikolay V Dokholyan

Open access · goldAbstract read
In one paragraph

Article in PLoS computational biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 8% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Motor dysfunction iniScience · 2022
    Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. SOD1 oligomers in amyotrophic lateral sclerosis.Current opinion in structural biology · 2021
    Review
  15. Article
  16. l-Serine Reduces Spinal Cord Pathology in a Vervet Model of Preclinical ALS/MND.Journal of neuropathology and experimental neurology · 2020
    Article
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

3 authors at 2 institutions in 1 country.

Elizabeth A ProctorDepartments of Neurosurgery, Pharmacology, and Biomedical Engineering, The Pennsylvania State University, Hershey, Pennsylvania, United States of America.ORCID 0000-0002-7627-2198
David D MowreyDepartment of Biochemistry & Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America.
Nikolay V DokholyanDepartments of Pharmacology, Biochemistry & Molecular Biology, Chemistry, and Biomedical Engineering, The Pennsylvania State University, Hershey, Pennsylvania, United States of America.ORCID 0000-0002-8225-4025
Pennsylvania State University · USUniversity of North Carolina at Chapel Hill · US

Funding

Protein Misfolding and AggregationR01GM080742 · NIGMS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DOKHOLYAN, NIKOLAY · 2007 to 2015
$2.8M
Integrating cheminformatics and molecular simulations for virtual drug screeningR01GM114015 · NIGMS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI DOKHOLYAN, NIKOLAY · 2016 to 2019
$1.1M
NIGMS NIH HHS R01 GM080742NIGMS NIH HHS R01 GM114015
6 · The paper itself

Abstract

Exposure to the environmental toxin β-methylamino-L-alanine (BMAA) is linked to amyotrophic lateral sclerosis (ALS), but its disease-promoting mechanism remains unknown. We propose that incorporation of BMAA into the ALS-linked protein Cu,Zn superoxide dismutase (SOD1) upon translation promotes protein misfolding and aggregation, which has been linked to ALS onset and progression. Using molecular simulation and predictive energetic computation, we demonstrate that substituting any serine with BMAA in SOD1 results in structural destabilization and aberrant dynamics, promoting neurotoxic SOD1 aggregation. We propose that translational incorporation of BMAA into SOD1 is directly responsible for its toxicity in neurodegeneration, and BMAA modification of SOD1 may serve as a biomarker of ALS.

Indexed as

Amino Acids, DiaminoAmino Acid SubstitutionAmyotrophic Lateral SclerosisBinding SitesComputational BiologyCyanobacteria ToxinsEnzyme StabilityHumansMolecular Dynamics SimulationProtein Aggregation, PathologicalProtein FoldingProtein Modification, TranslationalProtein Structure, QuaternarySuperoxide Dismutase-1Amino Acids, Diaminobeta-N-methylamino-L-alanineCyanobacteria ToxinsSOD1 protein, humanSuperoxide Dismutase-1

Identifiers

PMID31323035
PMCPMC6668853
OpenAlexW2963414076

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.