Evidence map›Paper›PMID 24009677›Full record

ArticlePloS one2013

Phospholipase D toxins of brown spider venom convert lysophosphatidylcholine and sphingomyelin to cyclic phosphates.

Daniel M Lajoie, Pamela A Zobel-Thropp, Vlad K Kumirov, Vahe Bandarian, Greta J Binford, Matthew H J Cordes

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

28 citing papers in PubMed, 58 citations in OpenAlex.

  1. Review
  2. Spider venom phospholipase D toxin structure: Interfacial binding site, mechanism, activation, and head group preference.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Prospects and challenges of recombinant spider venom enzymes: insights fromFrontiers in bioengineering and biotechnology · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Brown spider (Loxosceles sp.) bite and COVID-19: A case report.Toxicon : official journal of the International Society on Toxinology · 2022
    Article
  14. Article
  15. Article
  16. Review
  17. Novel Mutant Phospholipase D fromMolecules (Basel, Switzerland) · 2020
    Article
  18. Review
  19. Review
  20. Brown Spider (Toxins · 2019
    Review
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 2 institutions in 1 country.

Daniel M LajoieDepartment of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona, USA.
Pamela A Zobel-Thropp
Vlad K Kumirov
Vahe Bandarian
Greta J Binford
Matthew H J Cordes
University of Arizona · USLewis & Clark College · US

Funding

CHEMISTRY-BIOLOGY INTERFACE TRAINING PROGRAMT32GM008804 · NIGMS · UNIVERSITY OF ARIZONA · PI MONTFORT, WILLIAM R. · 2003 to 2023
$3.9M
Biosynthesis of Deazapurine-Containing MetabolitesR01GM072623 · NIGMS · UNIVERSITY OF UTAH · PI BANDARIAN, VAHE · 2005 to 2017
$3.9M
NIGMS NIH HHS R01 GM072623NIGMS NIH HHS T32 GM008804
6 · The paper itself

Abstract

Venoms of brown spiders in the genus Loxosceles contain phospholipase D enzyme toxins that can cause severe dermonecrosis and even death in humans. These toxins cleave the substrates sphingomyelin and lysophosphatidylcholine in mammalian tissues, releasing the choline head group. The other products of substrate cleavage have previously been reported to be monoester phospholipids, which would result from substrate hydrolysis. Using (31)P NMR and mass spectrometry we demonstrate that recombinant toxins, as well as whole venoms from diverse Loxosceles species, exclusively catalyze transphosphatidylation rather than hydrolysis, forming cyclic phosphate products from both major substrates. Cyclic phosphates have vastly different biological properties from their monoester counterparts, and they may be relevant to the pathology of brown spider envenomation.

Indexed as

AnimalsBrown Recluse SpiderLysophosphatidylcholinesMass SpectrometryPhosphatesPhospholipase DRecombinant ProteinsSphingomyelinsSpider VenomsSubstrate SpecificityLysophosphatidylcholinesPhosphatesPhospholipase DRecombinant ProteinsSphingomyelinsSpider Venoms

Identifiers

PMID24009677
PMCPMC3756997
OpenAlexW2047786354

What Socratic 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 Socratic graph.