Evidence map›Paper›PMID 20404910›Full record

ArticlePloS one2010

Metal-free ALS variants of dimeric human Cu,Zn-superoxide dismutase have enhanced populations of monomeric species.

Anna-Karin E Svensson, Osman Bilsel, Can Kayatekin, Jessica A Adefusika, Jill A Zitzewitz, C Robert Matthews

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 9% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Pooled it
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  10. Characterization of the activity, aggregation, and toxicity of heterodimers of WT and ALS-associated mutant Sod1.Proceedings of the National Academy of Sciences of the United States of America · 2019
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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

6 authors at 1 institution in 1 country.

Anna-Karin E SvenssonDepartment of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America.
Osman Bilsel
Can Kayatekin
Jessica A Adefusika
Jill A Zitzewitz
C Robert Matthews
University of Massachusetts Chan Medical School · US

Funding

TISSUE CULTURE CORE FACILITYP30HD004147 · NICHD · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI MCILVANE, WILLIAM J · 1985 to 2014
$9.1M
FOLDING MECHANISMS OF MULTISUBUNIT PEPTIDES AND PROTEINSR01GM054836 · NIGMS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI MATTHEWS, C ROBERT · 1996 to 2013
$3.7M
UMass Chan Medical School Summer Undergraduate Research ProgramR25HL092610 · NHLBI · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI BRIAN C LEWIS, Pranoti Mandrekar · 2008 to 2026
$2.6M
NHLBI NIH HHS 5R25HL92610-2NHLBI NIH HHS R25 HL092610NICHD NIH HHS HD04147NICHD NIH HHS P30 HD004147NIGMS NIH HHS GM 54836NIGMS NIH HHS R01 GM054836
6 · The paper itself

Abstract

Amino acid replacements at dozens of positions in the dimeric protein human, Cu,Zn superoxide dismutase (SOD1) can cause amyotrophic lateral sclerosis (ALS). Although it has long been hypothesized that these mutations might enhance the populations of marginally-stable aggregation-prone species responsible for cellular toxicity, there has been little quantitative evidence to support this notion. Perturbations of the folding free energy landscapes of metal-free versions of five ALS-inducing variants, A4V, L38V, G93A, L106V and S134N SOD1, were determined with a global analysis of kinetic and thermodynamic folding data for dimeric and stable monomeric versions of these variants. Utilizing this global analysis approach, the perturbations on the global stability in response to mutation can be partitioned between the monomer folding and association steps, and the effects of mutation on the populations of the folded and unfolded monomeric states can be determined. The 2- to 10-fold increase in the population of the folded monomeric state for A4V, L38V and L106V and the 80- to 480-fold increase in the population of the unfolded monomeric states for all but S134N would dramatically increase their propensity for aggregation through high-order nucleation reactions. The wild-type-like populations of these states for the metal-binding region S134N variant suggest that even wild-type SOD1 may also be prone to aggregation in the absence of metals.

Indexed as

Mutation, MissenseAmyotrophic Lateral SclerosisBinding SitesHumansKineticsMetalsProtein FoldingProtein MultimerizationSuperoxide DismutaseSuperoxide Dismutase-1ThermodynamicsMetalsSOD1 protein, humanSuperoxide DismutaseSuperoxide Dismutase-1

Identifiers

PMID20404910
PMCPMC2852398
OpenAlexW2070198494

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.