Evidence map›Paper›PMID 20357002›Full record

ArticleMolecular biology of the cell2010

Arf3 is activated uniquely at the trans-Golgi network by brefeldin A-inhibited guanine nucleotide exchange factors.

Florin Manolea, Justin Chun, David W Chen, Ian Clarke, Nathan Summerfeldt, Joel B Dacks, Paul Melançon

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

34 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. ARF GTPases Function at the Golgi.Sub-cellular biochemistry · 2026
    Review
  3. Arfs on the Golgi: four conductors, one orchestra.Frontiers in molecular biosciences · 2025
    Review
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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 1 institution in 1 country.

Florin ManoleaDepartment of Cell Biology, University of Alberta, Edmonton, AB, Canada.
Justin Chun
David W Chen
Ian Clarke
Nathan Summerfeldt
Joel B Dacks
Paul Melançon
University of Alberta · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

It is widely assumed that class I and II Arfs function interchangeably throughout the Golgi complex. However, we report here that in vivo, Arf3 displays several unexpected properties. Unlike other Golgi-localized Arfs, Arf3 associates selectively with membranes of the trans-Golgi network (TGN) in a manner that is both temperature-sensitive and uniquely dependent on guanine nucleotide exchange factors of the BIGs family. For example, BIGs knockdown redistributed Arf3 but not Arf1 from Golgi membranes. Furthermore, shifting temperature to 20 degrees C, a temperature known to block cargo in the TGN, selectively redistributed Arf3 from Golgi membranes. Arf3 redistribution occurred slowly, suggesting it resulted from a change in membrane composition. Arf3 knockdown and overexpression experiments suggest that redistribution is not responsible for the 20 degrees C block. To investigate in more detail the mechanism for Arf3 recruitment and temperature-dependent release, we characterized several mutant forms of Arf3. This analysis demonstrated that those properties are readily separated and depend on pairs of residues present at opposite ends of the protein. Furthermore, phylogenetic analysis established that all four critical residues were absolutely conserved and unique to Arf3. These results suggest that Arf3 plays a unique function at the TGN that likely involves recruitment by a specific receptor.

Indexed as

ADP-Ribosylation Factor 1ADP-Ribosylation FactorsAmino Acid SequenceAnimalsBiomarkersBrefeldin ACHO CellsCoat Protein Complex ICricetinaeCricetulusCytosolGuanine Nucleotide Exchange FactorsHeLa CellsHumansMolecular Sequence DataPhylogenyADP-Ribosylation Factor 1ADP-Ribosylation FactorsARF3 protein, humanBiomarkersBrefeldin ACoat Protein Complex IGuanine Nucleotide Exchange FactorsRecombinant Fusion ProteinsRNA, Small Interfering

Identifiers

PMID20357002
PMCPMC2877642
OpenAlexW2123971638

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.