Evidence map›Paper›PMID 18042453›Full record

ArticleMolecular cell2007

Structural basis and mechanism of autoregulation in 3-phosphoinositide-dependent Grp1 family Arf GTPase exchange factors.

Jonathan P DiNitto, Anna Delprato, Meng-Tse Gabe Lee, Thomas C Cronin, Shaohui Huang, Adilson Guilherme, Michael P Czech, David G Lambright

Open access · bronzeAbstract read
In one paragraph

Article in Molecular cell, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

97 citing papers in PubMed, 154 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Sec7 regulatory domains scaffold autoinhibited and active conformations.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Physiological and Pathological Roles of the Cytohesin Family in Neurons.International journal of molecular sciences · 2022
    Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Novel function for AP-1B during cell migration.Molecular biology of the cell · 2020
    Article
  16. Article
  17. Article
  18. Computer simulations of protein-membrane systems.Progress in molecular biology and translational science · 2020
    Article
  19. Article
  20. Article

37 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

8 authors at 1 institution in 1 country.

Jonathan P DiNittoProgram in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA 01605, USA.
Anna Delprato
Meng-Tse Gabe Lee
Thomas C Cronin
Shaohui Huang
Adilson Guilherme
Michael P Czech
David G Lambright
University of Massachusetts Chan Medical School · US

Funding

SUBCELLULAR LOCALIZATION OF PI 3-KINASE SIGNALINGP01DK060564 · NIDDK · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI FOGARTY, KEVIN EDWARD · 2001 to 2011
$13.9M
NIDDK NIH HHS DK60564NIDDK NIH HHS P01 DK060564
6 · The paper itself

Abstract

Arf GTPases regulate membrane trafficking and actin dynamics. Grp1, ARNO, and Cytohesin-1 comprise a family of phosphoinositide-dependent Arf GTPase exchange factors with a Sec7-pleckstrin homology (PH) domain tandem. Here, we report that the exchange activity of the Sec7 domain is potently autoinhibited by conserved elements proximal to the PH domain. The crystal structure of the Grp1 Sec7-PH tandem reveals a pseudosubstrate mechanism of autoinhibition in which the linker region between domains and a C-terminal amphipathic helix physically block the docking sites for the switch regions of Arf GTPases. Mutations within either element result in partial or complete activation. Critical determinants of autoinhibition also contribute to insulin-stimulated plasma membrane recruitment. Autoinhibition can be largely reversed by binding of active Arf6 to Grp1 and by phosphorylation of tandem PKC sites in Cytohesin-1. These observations suggest that Grp1 family GEFs are autoregulated by mechanisms that depend on plasma membrane recruitment for activation.

Indexed as

3T3-L1 CellsAdipocytesADP-Ribosylation FactorsAmino Acid MotifsAmino Acid SequenceAnimalsCell MembraneCrystallography, X-RayDNA Mutational AnalysisEnzyme ActivationGuanine Nucleotide Exchange FactorsMiceModels, BiologicalModels, MolecularMolecular Sequence DataPhosphatidylinositolsADP-Ribosylation FactorsGuanine Nucleotide Exchange Factorsphosphatidylinositol receptorsPhosphatidylinositolsphosphoinositide 3-phosphateReceptors, Cytoplasmic and Nuclear

Identifiers

PMID18042453
PMCPMC2156038
OpenAlexW2035713281

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.