Evidence map›Paper›PMID 12221133›Full record

ArticleMolecular biology of the cell2002

Membrane trafficking of heterotrimeric G proteins via the endoplasmic reticulum and Golgi.

David Michaelson, Ian Ahearn, Martin Bergo, Stephen Young, Mark Philips

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing 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

60 citing papers in PubMed, 133 citations in OpenAlex.

  1. β-Adrenergic Receptors: Not Always Outside-In.Physiology (Bethesda, Md.) · 2026
    Review
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  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. G-Protein Subunit GαFrontiers in microbiology · 2020
    Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Phosphorylated K-Ras limits cell survival by blocking Bcl-xL sensitization of inositol trisphosphate receptors.Proceedings of the National Academy of Sciences of the United States of America · 2013
    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

5 authors at 2 institutions in 1 country.

David MichaelsonDepartment of Medicine, Cell Biology and Pharmacology, NYU School of Medicine, 10016, USA.
Ian Ahearn
Martin Bergo
Stephen Young
Mark Philips
New York University · USGladstone Institutes · US

Funding

ZOPOLRESTAT IN SUBJECTS W/ PERIPHERAL SYMMETRICAL DIABETIC POLYNEUROPATHYM01RR000096 · NCRR · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI NOVIK, YELENA · 1985 to 2008
$34.8M
TRAINING PROGRAM IN MOLECULAR ONCOLOGY &IMMUNOLOGYT32CA009161 · NCI · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI CARROLL, WILLIAM L., LEVY, DAVID E · 1985 to 2020
$13.3M
Membrane Targeting of GTPasesR01GM055279 · NIGMS · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI PHILIPS, MARK REID · 1997 to 2010
$3.2M
BIOLOGY OF PRENYLCYSTEINE CARBOXYL METHYLTRANSFERASER01AI036224 · NIAID · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI PHILIPS, MARK REID · 1998 to 2002
$967k
RAS SIGNALING AND NEUTROPHIL ACTIVATION IN SLER29AI036224 · NIAID · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI PHILIPS, MARK REID · 1993 to 1997
–
NCI NIH HHS CA-09161NCI NIH HHS T32 CA009161NCRR NIH HHS M01 RR000096NIAID NIH HHS AI-36224NIAID NIH HHS R01 AI036224NIAID NIH HHS R29 AI036224NIGMS NIH HHS GM-55279NIGMS NIH HHS R01 GM055279
6 · The paper itself

Abstract

Membrane targeting of G-protein alphabetagamma heterotrimers was investigated in live cells by use of Galpha and Ggamma subunits tagged with spectral mutants of green fluorescent protein. Unlike Ras proteins, Gbetagamma contains a single targeting signal, the CAAX motif, which directed the dimer to the endoplasmic reticulum. Endomembrane localization of farnesylated Ggamma(1), but not geranylgeranylated Ggamma(2), required carboxyl methylation. Targeting of the heterotrimer to the plasma membrane (PM) required coexpression of all three subunits, combining the CAAX motif of Ggamma with the fatty acyl modifications of Galpha. Galpha associated with Gbetagamma on the Golgi and palmitoylation of Galpha was required for translocation of the heterotrimer to the PM. Thus, two separate signals, analogous to the dual-signal targeting mechanism of Ras proteins, cooperate to target heterotrimeric G proteins to the PM via the endomembrane.

Indexed as

Amino Acid MotifsAnimalsBiological TransportCell LineCell MembraneCOS CellsDogsEndoplasmic ReticulumGolgi ApparatusGreen Fluorescent ProteinsGTP-Binding ProteinsHumansLuminescent ProteinsMicroscopy, FluorescenceModels, BiologicalPlasmidsGreen Fluorescent ProteinsGTP-Binding ProteinsLuminescent ProteinsRecombinant Fusion Proteins

Identifiers

PMID12221133
PMCPMC124159
OpenAlexW2152189564

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.