Evidence map›Paper›PMID 8041752›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1994

Transient transfection of the enteric parasite Entamoeba histolytica and expression of firefly luciferase.

J E Purdy, B J Mann, L T Pho, W A Petri

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
6.2field-weighted citation impact, top 3% 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

13 citing papers in PubMed, 63 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Regulation of gene expression in protozoa parasites.Journal of biomedicine & biotechnology · 2010
    Review
  5. Article
  6. Identification and characterization of a cyclooxygenase-like enzyme from Entamoeba histolytica.Proceedings of the National Academy of Sciences of the United States of America · 2003
    Article
  7. Review
  8. Article
  9. Article
  10. Transient and selectable transformation of the parasitic protist Trichomonas vaginalis.Proceedings of the National Academy of Sciences of the United States of America · 1997
    Article
  11. Transfection and continuous expression of heterologous genes in the protozoan parasite Entamoeba histolytica.Proceedings of the National Academy of Sciences of the United States of America · 1995
    Article
  12. Article
  13. Transient transfection and expression of firefly luciferase in Giardia lamblia.Proceedings of the National Academy of Sciences of the United States of America · 1995
    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

4 authors at 1 institution in 1 country.

J E PurdyDepartment of Medicine, University of Virginia, Charlottesville 22908.
B J Mann
L T Pho
W A Petri
University of Virginia · US

Funding

STRUCTURE/FUNCTION OF E HISTOLYTICA ADHERENCE LECTINR01AI026649 · NIAID · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI PETRI, WILLIAM A · 1989 to 2016
$6.1M
Role of CREM in Amebic Colitis and Inflammatory Bowel DiseaseR37AI026649 · NIAID · UNIVERSITY OF VIRGINIA · PI William A Petri · 2018 to 2026
$5.0M
GALACTOSE LECTIN OF E HISTOLYTICAR01AI032615 · NIAID · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI MANN, BARBARA J · 1994 to 2002
$585k
NIAID NIH HHS AI-26649NIAID NIH HHS AI-32615NIGMS NIH HHS GM-08267
6 · The paper itself

Abstract

Development of DNA-mediated transfection in Entamoeba histolytica will facilitate basic research toward the control of this protozoan parasite. A transient transfection system was established by using the firefly luciferase gene ligated to the 5' and 3' flanking regions of the amebic hgl1 gene. The optimal construct tested encoded an hgl1-luciferase fusion protein and contained 1 kb of 5' flanking sequence with 16 bases of coding sequence from the hgl1 gene ligated in-frame to the luciferase start codon and 2.3 kb of 3' flanking sequence from hgl1 ligated 3' to the luciferase stop codon. Optimal electroporation conditions in strain HM-1:IMSS trophozoites when using this construct were 500 microF and 500 V/cm, which resulted in luciferase activity up to 5000-fold above background 9-12 hr after electroporation. Constructs that contained the luciferase gene without amebic flanking sequences or that contained a simian virus 40 promoter, enhancer, and polyadenylylation signal produced only background levels of luciferase activity. The ability to introduce and express genes in amebae will now permit a genetic analysis of the virulence of this organism, which remains a serious threat to world health.

Indexed as

TransfectionAnimalsBase SequenceCell LineCloning, MolecularColeopteraDNA PrimersElectroporationEntamoeba histolyticaGene Expression Regulation, EnzymologicHaplorhiniKineticsLuciferasesMolecular Sequence DataProtease InhibitorsDNA PrimersLuciferasesProtease Inhibitors

Identifiers

PMID8041752
PMCPMC44346
OpenAlexW1997366474

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.