Evidence map›Paper›PMID 11500374›Full record

ArticleThe EMBO journal2001

Identification of a mammalian H(+)-myo-inositol symporter expressed predominantly in the brain.

M Uldry, M Ibberson, J D Horisberger, J Y Chatton, B M Riederer, B Thorens

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In one paragraph

Article in The EMBO journal, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed, 1 pooled it
3.8field-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

88 citing papers in PubMed, 1 synthesis or guideline pooled it, 235 citations in OpenAlex.

  1. Pooled it
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  18. GLUT5: structure, functions, diseases and potential applications.Acta biochimica et biophysica Sinica · 2023
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28 more citing papers are in PubMed but not listed here.

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

6 authors at 1 institution in 2 countries.

M UldryInstitute of Pharmacology and Toxicology, University of Lausanne, Lausanne, Switzerland.
M Ibberson
J D Horisberger
J Y Chatton
B M Riederer
B Thorens
Institute of Pharmacology · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Inositol and its phosphorylated derivatives play a major role in brain function, either as osmolytes, second messengers or regulators of vesicle endo- and exocytosis. Here we describe the identification and functional characterization of a novel H(+)-myo- inositol co-transporter, HMIT, expressed predominantly in the brain. HMIT cDNA encodes a 618 amino acid polypeptide with 12 predicted transmembrane domains. Functional expression of HMIT in Xenopus oocytes showed that transport activity was specific for myo-inositol and related stereoisomers with a Michaelis-Menten constant of approximately 100 microM, and that transport activity was strongly stimulated by decreasing pH. Electrophysiological measurements revealed that transport was electrogenic with a maximal transport activity reached at pH 5.0. In rat brain membrane preparations, HMIT appeared as a 75-90 kDa protein that could be converted to a 67 kDa band upon enzymatic deglycosylation. Immunofluorescence microscopy analysis showed HMIT expression in glial cells and some neurons. These data provide the first characterization of a mammalian H(+)-coupled myo- inositol transporter. Predominant central expression of HMIT suggests that it has a key role in the control of myo-inositol brain metabolism.

Indexed as

Amino Acid SequenceAnimalsBase SequenceBrainCell Line, TransformedDNA, ComplementaryElectrophysiologyGlucose Transport Proteins, FacilitativeHumansHydrogen-Ion ConcentrationInositolIntracellular FluidMammalsMembrane ProteinsMicroscopy, FluorescenceMolecular Sequence DataDNA, ComplementaryGlucose Transport Proteins, FacilitativeInositolMembrane ProteinsMonosaccharide Transport ProteinsRNA, MessengerSLC2A13 protein, humanSlc2a13 protein, rat

Identifiers

PMID11500374
PMCPMC125574
OpenAlexW2171937401

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.