Evidence map›Paper›PMID 21844198›Full record

ArticleThe Journal of biological chemistry2011

Several ADP-ribosylation factor (Arf) isoforms support COPI vesicle formation.

Vincent Popoff, Julian D Langer, Ingeborg Reckmann, Andrea Hellwig, Richard A Kahn, Britta Brügger, Felix T Wieland

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
2.0field-weighted citation impact, top 15% 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

37 citing papers in PubMed, 60 citations in OpenAlex.

  1. Review
  2. Article
  3. ARF GTPases Function at the Golgi.Sub-cellular biochemistry · 2026
    Review
  4. Arfs on the Golgi: four conductors, one orchestra.Frontiers in molecular biosciences · 2025
    Review
  5. Article
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  10. Review
  11. Article
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  14. Review
  15. Article
  16. Article
  17. Review
  18. ARF family GTPases with links to cilia.American journal of physiology. Cell physiology · 2020
    Review
  19. Article
  20. 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

7 authors at 3 institutions in 2 countries.

Vincent PopoffHeidelberg University Biochemistry Center (BZH), University of Heidelberg, INF 364, 69120 Heidelberg, Germany. Electronic address: vincent.popoff@bzh.uni-heidelberg.de.
Julian D LangerDepartment of Molecular Membrane Biology, Max Planck Institute of Biophysics, 60438 Frankfurt am Main, Germany.
Ingeborg ReckmannHeidelberg University Biochemistry Center (BZH), University of Heidelberg, INF 364, 69120 Heidelberg, Germany.
Andrea HellwigDepartment of Neurobiology IZN, University of Heidelberg, INF 364, 69120 Heidelberg, Germany.
Richard A KahnDepartment of Biochemistry, Emory University School of Medicine, Atlanta, Georgia 30322.
Britta BrüggerHeidelberg University Biochemistry Center (BZH), University of Heidelberg, INF 364, 69120 Heidelberg, Germany.
Felix T WielandHeidelberg University Biochemistry Center (BZH), University of Heidelberg, INF 364, 69120 Heidelberg, Germany.
Heidelberg University · DEEmory University · USMax Planck Institute of Biophysics · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Newly synthesized proteins and lipids are transported in vesicular carriers along the secretory pathway. Arfs (ADP-ribosylation factors), a family of highly conserved GTPases within the Ras superfamily, control recruitment of molecular coats to membranes, the initial step of coated vesicle biogenesis. Arf1 and coatomer constitute the minimal cytosolic machinery leading to COPI vesicle formation from Golgi membranes. Although some functional redundancies have been suggested, other Arf isoforms have been poorly analyzed in this context. In this study, we found that Arf1, Arf4, and Arf5, but not Arf3 and Arf6, associate with COPI vesicles generated in vitro from Golgi membranes and purified cytosol. Using recombinant myristoylated proteins, we show that Arf1, Arf4, and Arf5 each support COPI vesicle formation individually. Unexpectedly, we found that Arf3 could also mediate vesicle biogenesis. However, Arf3 was excluded from the vesicle fraction in the presence of the other isoforms, highlighting a functional competition between the different Arf members.

Indexed as

ADP-Ribosylation FactorsAnimalsCOP-Coated VesiclesGolgi ApparatusHumansIntracellular MembranesIsoenzymesLipoylationRatsRecombinant ProteinsADP-Ribosylation FactorsIsoenzymesRecombinant Proteins

Identifiers

PMID21844198
PMCPMC3195608
OpenAlexW2002859877

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.