Evidence map›Paper›PMID 21698217›Full record

ArticlePLoS pathogens2011

Plasmodium falciparum merozoite invasion is inhibited by antibodies that target the PfRh2a and b binding domains.

Tony Triglia, Lin Chen, Sash Lopaticki, Chaitali Dekiwadia, David T Riglar, Anthony N Hodder, Stuart A Ralph, Jake Baum, Alan F Cowman

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
8.2field-weighted citation impact, top 2% 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

25 citing papers in PubMed, 51 citations in OpenAlex.

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  12. Proceedings of the National Academy of Sciences of the United States of America · 2017
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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.

Tony TrigliaThe Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia.
Lin Chen
Sash Lopaticki
Chaitali Dekiwadia
David T Riglar
Anthony N Hodder
Stuart A Ralph
Jake Baum
Alan F Cowman
Walter and Eliza Hall Institute of Medical Research · AUUniversity of Melbourne · AU

Funding

Howard Hughes Medical Institute
6 · The paper itself

Abstract

Plasmodium falciparum, the causative agent of the most severe form of malaria in humans invades erythrocytes using multiple ligand-receptor interactions. The P. falciparum reticulocyte binding-like homologue proteins (PfRh or PfRBL) are important for entry of the invasive merozoite form of the parasite into red blood cells. We have analysed two members of this protein family, PfRh2a and PfRh2b, and show they undergo a complex series of proteolytic cleavage events before and during merozoite invasion. We show that PfRh2a undergoes a cleavage event in the transmembrane region during invasion consistent with activity of the membrane associated PfROM4 protease that would result in release of the ectodomain into the supernatant. We also show that PfRh2a and PfRh2b bind to red blood cells and have defined the erythrocyte-binding domain to a 15 kDa region at the N-terminus of each protein. Antibodies to this receptor-binding region block merozoite invasion demonstrating the important function of this domain. This region of PfRh2a and PfRh2b has potential in a combination vaccine with other erythrocyte binding ligands for induction of antibodies that would block a broad range of invasion pathways for P. falciparum into human erythrocytes.

Indexed as

AnimalsAntibodies, ProtozoanCells, CulturedEndocytosisErythrocytesHumansMerozoitesMiceMolecular Sequence DataPlasmodium falciparumProtein BindingProtein Interaction Domains and MotifsProtozoan ProteinsRabbitsAntibodies, ProtozoanProtozoan ProteinsRh2a protein, Plasmodium falciparumRh2b protein, Plasmodium falciparum

Identifiers

PMID21698217
PMCPMC3116812
OpenAlexW2025252781

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.