Evidence map›Paper›PMID 25300620›Full record

ArticleFASEB journal : official publication of the Federation of American Societies for Experimental Biology2015

Regulation and biological function of a flagellar glucose transporter in Leishmania mexicana: a potential glucose sensor.

Dayana Rodriguez-Contreras, Hamide Aslan, Xiuhong Feng, Khoa Tran, Phillip A Yates, Shaden Kamhawi, Scott M Landfear

Open access · greenAbstract read
In one paragraph

Article in FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

27 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
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  4. New Vistas in the Biology of the Flagellum-Pathogens (Basel, Switzerland) · 2022
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Dayana Rodriguez-ContrerasDepartments of Molecular Microbiology & Immunology and.
Hamide AslanLaboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA.
Xiuhong FengDepartments of Molecular Microbiology & Immunology and.
Khoa TranDepartments of Molecular Microbiology & Immunology and.
Phillip A YatesBiochemistry & Molecular Biology, Oregon Health & Science University, Portland, Oregon, USA; and.
Shaden KamhawiLaboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA.
Scott M LandfearDepartments of Molecular Microbiology & Immunology and landfear@ohsu.edu.
Oregon Health & Science University · USNational Institutes of Health · US

Funding

STAGE-SPECIFIC GENES IN LEISHMANIA ENRIETTIIR01AI025920 · NIAID · OREGON HEALTH & SCIENCE UNIVERSITY · PI LANDFEAR, SCOTT M · 1988 to 2010
$3.8M
GENETIC ANALYSIS OF PURINE METABOLISM IN LEISHMANIA DONOR37AI023682 · NIAID · OREGON HEALTH & SCIENCE UNIVERSITY · PI ULLMAN, BUDDY · 1998 to 2007
$2.7M
GENETICS OF PURINE METABOLISM IN LEISHMANIA DONOVANIR01AI023682 · NIAID · UNIVERSITY OF KENTUCKY · PI ULLMAN, BUDDY · 1985 to 2013
$2.0M
Deltavision RT Image Restoration System for Established Research Core FacilityS10RR023432 · NCRR · OREGON HEALTH & SCIENCE UNIVERSITY · PI KELLER, THOMAS J · 2007 to 2007
$365k
Flagellar targeting and sensory function of a glucose transporter in L. mexicana.F32AI096854 · NIAID · OREGON HEALTH & SCIENCE UNIVERSITY · PI TRAN, KHOA DANG · 2013 to 2015
$135k
Intramural NIH HHSNCRR NIH HHS S10 RR023432NCRR NIH HHS S10-RR023432NIAID NIH HHS AI023682NIAID NIH HHS AI25920NIAID NIH HHS F32 AI096854NIAID NIH HHS R01 AI023682NIAID NIH HHS R01 AI025920NIAID NIH HHS R37 AI023682
6 · The paper itself

Abstract

In Leishmania mexicana parasites, a unique glucose transporter, LmxGT1, is selectively targeted to the flagellar membrane, suggesting a possible sensory role that is often associated with ciliary membrane proteins. Expression of LmxGT1 is down-regulated ∼20-fold by increasing cell density but is up-regulated ∼50-fold by depleting glucose from the medium, and the permease is strongly down-regulated when flagellated insect-stage promastigotes invade mammalian macrophages and transform into intracellular amastigotes. Regulation of LmxGT1 expression by glucose and during the lifecycle operates at the level of protein stability. Significantly, a ∆lmxgt1 null mutant, grown in abundant glucose, undergoes catastrophic loss of viability when parasites deplete glucose from the medium, a property not exhibited by wild-type or add-back lines. These results suggest that LmxGT1 may function as a glucose sensor that allows parasites to enter the stationary phase when they deplete glucose and that in the absence of this sensor, parasites do not maintain viability when they run out of glucose. However, alternate roles for LmxGT1 in monitoring glucose availability are considered. The absence of known sensory receptors with defined ligands and biologic functions in Leishmania and related kinetoplastid parasites underscores the potential significance of these observations.

Indexed as

AnimalsCell LineFemaleFlagellaGene Expression RegulationGenes, ProtozoanGlucoseGlucose Transport Proteins, FacilitativeHumansLeishmania mexicanaLeishmaniasis, CutaneousMiceMice, Inbred BALB CMutationProtozoan ProteinsPsychodidaeGlucoseGlucose Transport Proteins, FacilitativeProtozoan ProteinsRecombinant Fusion Proteinsenvironmental sensingLeishmania parasitesprotein expressionTaV2A peptidetransceptor

Identifiers

PMID25300620
PMCPMC4285543
OpenAlexW2102023255

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.