Evidence map›Paper›PMID 25789876›Full record

ArticlePloS one2015

Arfaptin-1 negatively regulates Arl1-mediated retrograde transport.

Lien-Hung Huang, Wei-Chung Lee, Shu-Ting You, Chia-Chen Cheng, Chia-Jung Yu

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.6field-weighted citation impact, top 33% 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

3 citing papers in PubMed, 8 citations in OpenAlex.

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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

5 authors at 2 institutions in 1 country.

Lien-Hung HuangGraduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Tao-Yuan, Taiwan.
Wei-Chung LeeGraduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Tao-Yuan, Taiwan.
Shu-Ting YouInstitute of Molecular Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.
Chia-Chen ChengDepartment of Cell and Molecular Biology, College of Medicine, Chang Gung University, Tao-Yuan, Taiwan.
Chia-Jung YuGraduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Tao-Yuan, Taiwan; Department of Cell and Molecular Biology, College of Medicine, Chang Gung University, Tao-Yuan, Taiwan; Molecular Medicine Research Center, Chang Gung University, Tao-Yuan, Taiwan.
Chang Gung University · TWNational Taiwan University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The small GTPase Arf-like protein 1 (Arl1) is well known for its role in intracellular vesicular transport at the trans-Golgi network (TGN). In this study, we used differential affinity chromatography combined with mass spectrometry to identify Arf-interacting protein 1b (arfaptin-1b) as an Arl1-interacting protein and characterized a novel function for arfaptin-1 (including the arfaptin-1a and 1b isoforms) in Arl1-mediated retrograde transport. Using a Shiga-toxin subunit B (STxB) transportation assay, we demonstrated that knockdown of arfaptin-1 accelerated the retrograde transport of STxB from the endosome to the Golgi apparatus, whereas Arl1 knockdown inhibited STxB transport compared with control cells. Arfaptin-1 overexpression, but not an Arl1 binding-defective mutant (arfaptin-1b-F317A), consistently inhibited STxB transport. Exogenous arfaptin-1 expression did not interfere with the localization of the Arl1-interacting proteins golgin-97 and golgin-245 to the TGN and vice versa. Moreover, we found that the N-terminal region of arfaptin-1 was involved in the regulation of retrograde transport. Our results show that arfaptin-1 acts as a negative regulator in Arl1-mediated retrograde transport and suggest that different functional complexes containing Arl1 form in distinct microdomains and are responsible for different functions.

Indexed as

Adaptor Proteins, Signal TransducingADP-Ribosylation FactorsAnalysis of VarianceAutoantigensChromatography, AffinityFluorescent Antibody TechniqueGene Knockdown TechniquesGolgi Matrix ProteinsHeLa CellsHumansMass SpectrometryMembrane ProteinsRNA InterferenceShiga Toxin 2trans-Golgi NetworkVesicular Transport ProteinsAdaptor Proteins, Signal TransducingADP-ribosylation factor related proteinsADP-Ribosylation FactorsARFIP1 protein, humanAutoantigensGOLGA4 protein, humanGolgi complex autoantigen, 97-kDaGolgi Matrix ProteinsMembrane ProteinsShiga Toxin 2shiga toxin 2 B subunitVesicular Transport Proteins

Identifiers

PMID25789876
PMCPMC4366199
OpenAlexW2044897203

What OpenQuestion holds

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LicenceCC BY
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.