Evidence map›Paper›PMID 24571085›Full record

ArticleCellular microbiology2014

Conditional expression of apical membrane antigen 1 in Plasmodium falciparum shows it is required for erythrocyte invasion by merozoites.

Alan Yap, Mauro F Azevedo, Paul R Gilson, Greta E Weiss, Matthew T O'Neill, Danny W Wilson, Brendan S Crabb, Alan F Cowman

Open access · hybridAbstract read
In one paragraph

Article in Cellular microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
13.2field-weighted citation impact, top 1% 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

60 citing papers in PubMed, 128 citations in OpenAlex.

  1. Review
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  14. The Impact of Geographical Variation inTropical medicine and infectious disease · 2023
    Article
  15. Article
  16. Article
  17. Article
  18. The Cellular and Molecular Interaction Between Erythrocytes andFrontiers in cellular and infection microbiology · 2022
    Review
  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

8 authors at 2 institutions in 1 country.

Alan YapThe Walter and Eliza Hall Institute of Medical Research, Melbourne, Vic., 3052, Australia.
Mauro F Azevedo
Paul R Gilson
Greta E Weiss
Matthew T O'Neill
Danny W Wilson
Brendan S Crabb
Alan F Cowman
Burnet Institute · AUWalter and Eliza Hall Institute of Medical Research · AU

Funding

Howard Hughes Medical Institute
6 · The paper itself

Abstract

Malaria is caused by obligate intracellular parasites, of which Plasmodium falciparum is the most lethal species. In humans, P.  falciparum merozoites (invasive forms of the parasite) employ a host of parasite proteins to rapidly invade erythrocytes. One of these is the P.  falciparum apical membrane antigen 1 (PfAMA1) which forms a complex with rhoptry neck proteins at the tight junction. Here, we have placed the Pfama1 gene under conditional control using dimerizable Cre recombinase (DiCre) in P.  falciparum. DiCre-mediated excision of the loxP-flanked Pfama1 gene results in approximately 80% decreased expression of the protein within one intraerythrocytic growth cycle. This reduces growth by 40%, due to decreased invasion efficiency characterized by a post-invasion defect in sealing of the parasitophorous vacuole. These results show that PfAMA1 is an essential protein for merozoite invasion in P.  falciparum and either directly or indirectly plays a role in resealing of the red blood cell at the posterior end of the invasion event.

Indexed as

EndocytosisAntigens, ProtozoanErythrocytesGene ExpressionMembrane ProteinsMerozoitesMolecular BiologyPlasmodium falciparumProtozoan ProteinsRecombination, GeneticVacuolesAntigens, Protozoanapical membrane antigen I, PlasmodiumMembrane ProteinsProtozoan Proteins

Identifiers

PMID24571085
PMCPMC4231980
OpenAlexW2116741676

What OpenQuestion holds

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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.