Evidence map›Paper›PMID 22467743›Full record

ArticleEukaryotic cell2012

Analysis of the conformation and function of the Plasmodium falciparum merozoite proteins MTRAP and PTRAMP.

Onyinyechukwu Uchime, Raul Herrera, Karine Reiter, Svetlana Kotova, Richard L Shimp, Kazutoyo Miura, Dominique Jones, Jacob Lebowitz, Xavier Ambroggio, Darrell E Hurt and 4 more

Open access · diamondAbstract read
In one paragraph

Article in Eukaryotic cell, 2012. 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
4.1field-weighted citation impact, top 6% 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, 40 citations in OpenAlex.

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  18. Malaria adhesins: structure and function.Cellular microbiology · 2014
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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

14 authors at 4 institutions in 1 country.

Onyinyechukwu UchimeLaboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, USA.
Raul Herrera
Karine Reiter
Svetlana Kotova
Richard L Shimp
Kazutoyo Miura
Dominique Jones
Jacob Lebowitz
Xavier Ambroggio
Darrell E Hurt
Albert J Jin
Carole Long
Louis H Miller
David L Narum
National Institutes of Health · USNational Institute of Allergy and Infectious Diseases · USNational Institute of Biomedical Imaging and Bioengineering · USVector Oncology (United States) · US

Funding

Malaria Parasite Receptors And Host Cell LigandsZIAAI000241 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI MILLER, LOUIS · 2009 to 2025
$15.3M
Host Immune Responses to Antigens of Malaria ParasitesZIAAI001020 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI LONG, CAROLE · 2009 to 2025
$13.6M
Biomedical Studies and Cellular Imaging via Atomic Force MicroscopyZIAEB000015 · NIBIB · NATIONAL INSTITUTE OF BIOMEDICAL IMAGING AND BIOENGINEERING · PI JIN, ALBERT J · 2009 to 2025
$5.8M
Intramural NIH HHS ZIA EB000015
6 · The paper itself

Abstract

Thrombospondin repeat (TSR)-like domains are structures involved with cell adhesion. Plasmodium falciparum proteins containing TSR domains play crucial roles in parasite development. In particular, the preerythrocytic P. falciparum circumsporozoite protein is involved in hepatocyte invasion. The importance of these domains in two other malaria proteins, the merozoite-specific thrombospondin-related anonymous protein (MTRAP) and the thrombospondin-related apical membrane protein (PTRAMP), were assessed using near-full-length recombinant proteins composed of the extracellular domains produced in Escherichia coli. MTRAP is thought to be released from invasive organelles identified as micronemes during merozoite invasion to mediate motility and host cell invasion through an interaction with aldolase, an actin binding protein involved in the moving junction. PTRAMP function remains unknown. In this study, the conformation of recombinant MTRAP (rMTRAP) appeared to be a highly extended protein (2 nm by 33 nm, width by length, respectively), whereas rPTRAMP had a less extended structure. Using an erythrocyte binding assay, rMTRAP but not rPTRAMP bound human erythrocytes; rMTRAP binding was mediated through the TSR domain. MTRAP- and in general PTRAMP-specific antibodies failed to inhibit P. falciparum development in vitro. Altogether, MTRAP is a highly extended bifunctional protein that binds to an erythrocyte receptor and the merozoite motor.

Indexed as

Genes, ProtozoanAdolescentAdultAmino Acid SequenceAnimalsAntibodies, ProtozoanBiophysical PhenomenaChromatography, High Pressure LiquidComputational BiologyErythrocytesEscherichia coliFructose-Bisphosphate AldolaseHumansMembrane GlycoproteinsMembrane ProteinsMicroscopy, Atomic ForceAntibodies, ProtozoanFructose-Bisphosphate AldolaseMembrane GlycoproteinsMembrane ProteinsProtozoan ProteinsPTRAMP protein, PlasmodiumReceptors, ImmunologicRecombinant ProteinsSialic Acid Binding Ig-like Lectin 1SIGLEC1 protein, human

Identifiers

PMID22467743
PMCPMC3346429
OpenAlexW2140417128

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.