Evidence map›Paper›PMID 27528603›Full record

ArticleThe Journal of biological chemistry2016

Activated G Protein Gαs Samples Multiple Endomembrane Compartments.

Brent R Martin, Nevin A Lambert

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
–field-weighted citation impact
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

29 citing papers in PubMed.

  1. Mechanisms of XCR1 Membrane Trafficking and Constitutive Endocytosis.Basic & clinical pharmacology & toxicology · 2026
    Article
  2. Article
  3. Article
  4. G protein GαThe Journal of biological chemistry · 2026
    Article
  5. Article
  6. Article
  7. Class A and B GPCRs trigger rapid GαCommunications biology · 2025
    Article
  8. Dual Role of NRF2 in Pancreatic Precursor Lesions.Cancer research communications · 2025
    Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
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

2 authors.

Brent R MartinFrom the Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109 and.
Nevin A LambertDepartment of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, Georgia 30912 nelambert@augusta.edu.

Funding

Multiscale chemical approaches to map oxidative stressDP2GM114848 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MARTIN, BRENT RANDALL · 2014 to 2014
$2.2M
GPCR signaling complexes in living cellsR01GM078319 · NIGMS · AUGUSTA UNIVERSITY · PI LAMBERT, NEVIN ALAN · 2007 to 2017
$2.1M
Single-molecule and ensemble imaging of GPCR-G protein complexes in live cellsR01GM109879 · NIGMS · AUGUSTA UNIVERSITY · PI JAVITCH, JONATHAN A, LAMBERT, NEVIN ALAN · 2014 to 2017
$1.1M
NIGMS NIH HHS DP2 GM114848NIGMS NIH HHS R01 GM078319NIGMS NIH HHS R01 GM109879
6 · The paper itself

Abstract

Heterotrimeric G proteins are localized to the plasma membrane where they transduce extracellular signals to intracellular effectors. G proteins also act at intracellular locations, and can translocate between cellular compartments. For example, Gαs can leave the plasma membrane and move to the cell interior after activation. However, the mechanism of Gαs translocation and its intracellular destination are not known. Here we use bioluminescence resonance energy transfer (BRET) to show that after activation, Gαs rapidly associates with the endoplasmic reticulum, mitochondria, and endosomes, consistent with indiscriminate sampling of intracellular membranes from the cytosol rather than transport via a specific vesicular pathway. The primary source of Gαs for endosomal compartments is constitutive endocytosis rather than activity-dependent internalization. Recycling of Gαs to the plasma membrane is complete 25 min after stimulation is discontinued. We also show that an acylation-deacylation cycle is important for the steady-state localization of Gαs at the plasma membrane, but our results do not support a role for deacylation in activity-dependent Gαs internalization.

Indexed as

AcylationBioluminescence Resonance Energy Transfer TechniquesChromograninsEndocytosisEndoplasmic ReticulumEnzyme ActivationGTP-Binding Protein alpha Subunits, GsHEK293 CellsHumansIntracellular MembranesProtein TransportChromograninsGNAS protein, humanGTP-Binding Protein alpha Subunits, GsendosomeendosomesG protein-coupled receptor (GPCR)heterotrimeric G proteinintracellular traffickinglipaseprotein acylationprotein palmitoylation

Identifiers

PMID27528603
PMCPMC5034030

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.