Evidence map›Paper›PMID 17189207›Full record

ArticleCell metabolism2007

Gapex-5, a Rab31 guanine nucleotide exchange factor that regulates Glut4 trafficking in adipocytes.

Irfan J Lodhi, Shian-Huey Chiang, Louise Chang, Daniel Vollenweider, Robert T Watson, Mayumi Inoue, Jeffrey E Pessin, Alan R Saltiel

Open access · bronzeAbstract read
In one paragraph

Article in Cell metabolism, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed
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

57 citing papers in PubMed, 109 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. GLUT4 On the move.The Biochemical journal · 2022
    Article
  11. Article
  12. Article
  13. Journal of the American Society of Nephrology : JASN · 2018
    Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Review
  19. Article
  20. The role of the small GTPase Rab31 in cancer.Journal of cellular and molecular medicine · 2015
    Review
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

8 authors at 2 institutions in 1 country.

Irfan J LodhiLife Sciences Institute, University of Michigan, Ann Arbor, MI 48109, USA.
Shian-Huey Chiang
Louise Chang
Daniel Vollenweider
Robert T Watson
Mayumi Inoue
Jeffrey E Pessin
Alan R Saltiel
University of Michigan–Ann Arbor · USStony Brook University · US

Funding

PUBLIC HEALTH DEMONSTRATIONP60DK020572 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MYERS, MARTIN G · 1985 to 2012
$26.5M
The Role of G Proteins in Insulin ActionR01DK061618 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI SALTIEL, ALAN R. · 2002 to 2016
$5.1M
Novel Insulin Signals Regulating GLUT4 TranslocationR01DK059291 · NIDDK · UNIVERSITY OF IOWA · PI PESSIN, JEFFREY E · 2001 to 2005
$1.9M
NIDDK NIH HHS 5P60-DK20572NIDDK NIH HHS DK59291NIDDK NIH HHS P60 DK020572NIDDK NIH HHS R01 DK059291NIDDK NIH HHS R01 DK061618NIDDK NIH HHS R01-DK061618
6 · The paper itself

Abstract

Insulin stimulates glucose uptake by promoting translocation of the Glut4 glucose transporter from intracellular storage compartments to the plasma membrane. In the absence of insulin, Glut4 is retained intracellularly; the mechanism underlying this process remains uncertain. Using the TC10-interacting protein CIP4 as bait in a yeast two-hybrid screen, we cloned a RasGAP and VPS9 domain-containing protein, Gapex-5/RME-6. The VPS9 domain is a guanine nucleotide exchange factor for Rab31, a Rab5 subfamily GTPase implicated in trans-Golgi network (TGN)-to-endosome trafficking. Overexpression of Rab31 blocks insulin-stimulated Glut4 translocation, whereas knockdown of Rab31 potentiates insulin-stimulated Glut4 translocation and glucose uptake. Gapex-5 is predominantly cytosolic in untreated cells; its overexpression promotes intracellular retention of Glut4 in adipocytes. Insulin recruits the CIP4/Gapex-5 complex to the plasma membrane, thus reducing Rab31 activity and permitting Glut4 vesicles to translocate to the cell surface, where Glut4 docks and fuses to transport glucose into the cell.

Indexed as

AdipocytesAmino Acid SequenceAnimalsCell LineCell MembraneFibroblastsGlucose Transporter Type 4Guanine Nucleotide Exchange FactorsInsulinMiceMicrotubule-Associated ProteinsMinor Histocompatibility AntigensMolecular Sequence DataProtein Structure, TertiaryProtein Transportrab5 GTP-Binding ProteinsGlucose Transporter Type 4Guanine Nucleotide Exchange FactorsInsulinMicrotubule-Associated ProteinsMinor Histocompatibility Antigensrab5 GTP-Binding ProteinsTrip10 protein, mouse

Identifiers

PMID17189207
PMCPMC1779820
OpenAlexW1996023830

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.