Evidence map›Paper›PMID 24131891›Full record

ArticleToxins2013

Molecular characterization of Lys49 and Asp49 phospholipases A₂from snake venom and their antiviral activities against Dengue virus.

Alzira B Cecilio, Sergio Caldas, Raiana A De Oliveira, Arthur S B Santos, Michael Richardson, Gustavo B Naumann, Francisco S Schneider, Valeria G Alvarenga, Maria I Estevão-Costa, Andre L Fuly and 2 more

Open access · goldAbstract read
In one paragraph

Article in Toxins, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

24 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
  2. BthTX-II, an Asp49 PLAPharmaceuticals (Basel, Switzerland) · 2025
    Article
  3. Review
  4. Review
  5. Review
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Antiviral Effects of Animal Toxins: Is There a Way to Drugs?International journal of molecular sciences · 2022
    Review
  12. Review
  13. Review
  14. Review
  15. Insights into the antiviral activity of phospholipases AInternational journal of biological macromolecules · 2020
    Review
  16. Article
  17. Antimicrobials from Venomous Animals: An Overview.Molecules (Basel, Switzerland) · 2020
    Review
  18. Article
  19. Review
  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

12 authors at 4 institutions in 2 countries.

Alzira B CecilioLaboratory of Biotechnology and Health, Research and Development Center, Ezequiel Dias Foundation, Belo Horizonte 30510-010, MG, Brazil. eladio.flores@funed.mg.gov.br.
Sergio Caldas
Raiana A De Oliveira
Arthur S B Santos
Michael Richardson
Gustavo B Naumann
Francisco S Schneider
Valeria G Alvarenga
Maria I Estevão-Costa
Andre L Fuly
Johannes A Eble
Eladio F Sanchez
Ezequiel Dias Foundation · BRGoethe University Frankfurt · DEUniversidade Federal Fluminense · BRUniversity Hospital Frankfurt · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We report the detailed molecular characterization of two PLA₂s, Lys49 and Asp49 isolated from Bothrops leucurus venom, and examined their effects against Dengue virus (DENV). The Bl-PLA₂s, named BlK-PLA₂ and BlD-PLA₂, are composed of 121 and 122 amino acids determined by automated sequencing of the native proteins and peptides produced by digestion with trypsin. They contain fourteen cysteines with pIs of 9.05 and 8.18 for BlK- and BlD-PLA₂s, and show a high degree of sequence similarity to homologous snake venom PLA₂s, but may display different biological effects. Molecular masses of 13,689.220 (Lys49) and 13,978.386 (Asp49) were determined by mass spectrometry. DENV causes a prevalent arboviral disease in humans, and no clinically approved antiviral therapy is currently available to treat DENV infections. The maximum non-toxic concentration of the proteins to LLC-MK2 cells determined by MTT assay was 40 µg/mL for Bl-PLA₂s (pool) and 20 µg/mL for each isoform. Antiviral effects of Bl-PLA₂s were assessed by quantitative Real-Time PCR. Bl-PLA₂s were able to reduce DENV-1, DENV-2, and DENV-3 serotypes in LLC-MK2 cells infection. Our data provide further insight into the structural properties and their antiviral activity against DENV, opening up possibilities for biotechnological applications of these Bl-PLA₂s as tools of research.

Indexed as

AedesAmino Acid SequenceAnimalsAntiviral AgentsBothropsCell LineDengue VirusMacaca mulattaMolecular Sequence DataPhospholipases A2Reptilian ProteinsSequence AlignmentSnake VenomsAntiviral AgentsPhospholipases A2Reptilian ProteinsSnake Venoms

Identifiers

PMID24131891
PMCPMC3813911
OpenAlexW2001146505

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.