Evidence map›Paper›PMID 28375740›Full record

ArticleAntioxidants & redox signaling2018

Experimentally Dissecting the Origins of Peroxiredoxin Catalysis.

Kimberly J Nelson, Arden Perkins, Amanda E D Van Swearingen, Steven Hartman, Andrew E Brereton, Derek Parsonage, Freddie R Salsbury, P Andrew Karplus, Leslie B Poole

Abstract read
In one paragraph

Article in Antioxidants & redox signaling, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

21 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. OxyR contributes to the oxidative stress capacity and virulence of hypervirulentFrontiers in cellular and infection microbiology · 2025
    Article
  7. Review
  8. Glutathione-Related Enzymes and Proteins: A Review.Molecules (Basel, Switzerland) · 2023
    Review
  9. Article
  10. Review
  11. PeerJ · 2021
    Article
  12. Article
  13. Real-time monitoring of peroxiredoxin oligomerization dynamics in living cells.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  14. Article
  15. Article
  16. Natural Dicarbonyls Inhibit Peroxidase Activity of Peroxiredoxins.Doklady. Biochemistry and biophysics · 2019
    Article
  17. Review
  18. Article
  19. Article
  20. 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

9 authors at 2 institutions in 1 country.

Kimberly J Nelson1 Department of Biochemistry, Wake Forest School of Medicine , Winston-Salem, North Carolina.
Arden Perkins3 Department of Biochemistry and Biophysics, Oregon State University , Corvallis, Oregon.
Amanda E D Van Swearingen1 Department of Biochemistry, Wake Forest School of Medicine , Winston-Salem, North Carolina.
Steven Hartman3 Department of Biochemistry and Biophysics, Oregon State University , Corvallis, Oregon.
Andrew E Brereton3 Department of Biochemistry and Biophysics, Oregon State University , Corvallis, Oregon.
Derek Parsonage1 Department of Biochemistry, Wake Forest School of Medicine , Winston-Salem, North Carolina.
Freddie R Salsbury2 Center for Redox Biology and Medicine, Wake Forest School of Medicine , Winston-Salem, North Carolina.
P Andrew Karplus3 Department of Biochemistry and Biophysics, Oregon State University , Corvallis, Oregon.
Leslie B Poole1 Department of Biochemistry, Wake Forest School of Medicine , Winston-Salem, North Carolina.
Wake Forest University · USOregon State University · US

Funding

Tumor Tissue CoreP30CA012197 · NCI · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI Ruben A. Mesa · 1985 to 2026
$55.4M
Mechanistic Studies of Alkyl Hydroperoxide Reductase and Related Redox SystemsR01GM050389 · NIGMS · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI POOLE, LESLIE B · 1994 to 2013
$4.8M
Mechanisms and Regulation of PeroxiredoxinsR01GM119227 · NIGMS · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI POOLE, LESLIE B · 2016 to 2019
$1.4M
NCI NIH HHS P30 CA012197NIGMS NIH HHS R01 GM050389NIGMS NIH HHS R01 GM119227
6 · The paper itself

Abstract

aimsPeroxiredoxins (Prxs) are ubiquitous cysteine-based peroxidases involved in oxidant defense and signal transduction. Despite much study, the precise roles of conserved residues remain poorly defined. In this study, we carried out extensive functional and structural characterization of 10 variants of such residues in a model decameric bacterial Prx.

resultsThree active site proximal mutations of Salmonella typhimurium AhpC, T43V, R119A, and E49Q, lowered catalytic efficiency with hydrogen peroxide by 4-5 orders of magnitude, but did not affect reactivity toward their reductant, AhpF. pK INNOVATION: This is the first study of Prx mutants to comprehensively assess the effects of mutations on catalytic activities, the active site cysteine pK

conclusionThe Arg119 side chain must be properly situated for efficient catalysis, but for other debilitating variants, the functional defects could be explained by structural perturbations and/or associated decamer destabilization rather than direct effects. This underscores the importance of our comprehensive approach. A remarkable new finding was the preference of the reductant for decamers. Antioxid. Redox Signal. 28, 521-536.

Indexed as

CatalysisAmino Acid SequenceCatalytic DomainCrystallography, X-RayCysteineHydrogen PeroxideKineticsModels, MolecularMutationOxidation-ReductionPeroxidasesPeroxiredoxinsSalmonella typhimuriumCysteineHydrogen PeroxidePeroxidasesPeroxiredoxinsAhpCdecamerenzyme mechanismperoxide signalingregulationthiol peroxidase

Identifiers

PMID28375740
PMCPMC5806077
OpenAlexW2590338076

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.