Evidence map›Paper›PMID 23489321›Full record

ArticleMolecular microbiology2013

Robust inducible Cre recombinase activity in the human malaria parasite Plasmodium falciparum enables efficient gene deletion within a single asexual erythrocytic growth cycle.

Christine R Collins, Sujaan Das, Eleanor H Wong, Nicole Andenmatten, Robert Stallmach, Fiona Hackett, Jean-Paul Herman, Sylke Müller, Markus Meissner, Michael J Blackman

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 136 papers.

0numbers the graph read from it
0cells of the map it votes in
136citing papers in PubMed
13.7field-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

136 citing papers in PubMed, 265 citations in OpenAlex.

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76 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 2 countries.

Christine R CollinsDivision of Parasitology, MRC National Institute for Medical Research, Mill Hill, London, NW7 1AA, UK.
Sujaan Das
Eleanor H Wong
Nicole Andenmatten
Robert Stallmach
Fiona Hackett
Jean-Paul Herman
Sylke Müller
Markus Meissner
Michael J Blackman
LifeArc · GBUniversity of Glasgow · GBWellcome Centre for Molecular Parasitology · GBCentre National de la Recherche Scientifique · FR

Funding

Medical Research Council MC_U117532063Wellcome Trust 085349Wellcome Trust 086550/Z/08/ZWellcome Trust 087582Wellcome Trust 087582/Z/08/ZWellcome Trust U117532063Wellcome Trust WT061173MA
6 · The paper itself

Abstract

Asexual blood stages of the malaria parasite, which cause all the pathology associated with malaria, can readily be genetically modified by homologous recombination, enabling the functional study of parasite genes that are not essential in this part of the life cycle. However, no widely applicable method for conditional mutagenesis of essential asexual blood-stage malarial genes is available, hindering their functional analysis. We report the application of the DiCre conditional recombinase system to Plasmodium falciparum, the causative agent of the most dangerous form of malaria. We show that DiCre can be used to obtain rapid, highly regulated site-specific recombination in P. falciparum, capable of excising loxP-flanked sequences from a genomic locus with close to 100% efficiency within the time-span of a single erythrocytic growth cycle. DiCre-mediated deletion of the SERA5 3' UTR failed to reduce expression of the gene due to the existence of alternative cryptic polyadenylation sites within the modified locus. However, we successfully used the system to recycle the most widely used drug resistance marker for P. falciparum, human dihydrofolate reductase, in the process producing constitutively DiCre-expressing P. falciparum clones that have broad utility for the functional analysis of essential asexual blood-stage parasite genes.

Indexed as

Gene DeletionGene ExpressionGenes, ProtozoanGenetics, MicrobialIntegrasesMolecular BiologyParasitologyPlasmodium falciparumRecombination, GeneticCre recombinaseIntegrases

Identifiers

PMID23489321
PMCPMC3708112
OpenAlexW1481101201

What OpenQuestion holds

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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.