Evidence map›Paper›PMID 25789658›Full record

ArticlePloS one2015

Proteomic analysis of proteins surrounding occludin and claudin-4 reveals their proximity to signaling and trafficking networks.

Karin Fredriksson, Christina M Van Itallie, Angel Aponte, Marjan Gucek, Amber J Tietgens, James M Anderson

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 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
5.6field-weighted citation impact, top 4% 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

62 citing papers in PubMed, 84 citations in OpenAlex.

  1. Occludin acts as a dynein adaptor regulating permeability and collateral angiogenesis.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Cell-cell communication: new insights and clinical implications.Signal transduction and targeted therapy · 2024
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Claudin-4: A New Molecular Target for Epithelial Cancer Therapy.International journal of molecular sciences · 2023
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Hypomethylation ofInternational journal of molecular sciences · 2022
    Article
  18. Article
  19. Review
  20. Review

2 more citing papers are in PubMed but not listed here.

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

6 authors at 2 institutions in 1 country.

Karin FredrikssonLaboratory of Tight Junction Structure and Function, NHLBI, National Institutes of Health, Bethesda, MD, United States of America.
Christina M Van ItallieLaboratory of Tight Junction Structure and Function, NHLBI, National Institutes of Health, Bethesda, MD, United States of America.
Angel AponteProteomics Core Facility, NHLBI, National Institutes of Health, Bethesda, MD, United States of America.
Marjan GucekProteomics Core Facility, NHLBI, National Institutes of Health, Bethesda, MD, United States of America.
Amber J TietgensLaboratory of Tight Junction Structure and Function, NHLBI, National Institutes of Health, Bethesda, MD, United States of America.
James M AndersonLaboratory of Tight Junction Structure and Function, NHLBI, National Institutes of Health, Bethesda, MD, United States of America.
National Heart Lung and Blood Institute · USNational Institutes of Health · US

Funding

Light Microscopy CoreZICHL006019 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI COMBS, CHRISTIAN · 2009 to 2025
$29.3M
Proteomics CoreZICHL005903 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI GUCEK, MARJAN · 2009 to 2022
$23.3M
Expanding the tight junction inventory through proteomicsZIAHL006176 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI ANDERSON, JAMES · 2014 to 2014
$601k
Intramural NIH HHS
6 · The paper itself

Abstract

Tight junctions are complex membrane structures that regulate paracellular movement of material across epithelia and play a role in cell polarity, signaling and cytoskeletal organization. In order to expand knowledge of the tight junction proteome, we used biotin ligase (BioID) fused to occludin and claudin-4 to biotinylate their proximal proteins in cultured MDCK II epithelial cells. We then purified the biotinylated proteins on streptavidin resin and identified them by mass spectrometry. Proteins were ranked by relative abundance of recovery by mass spectrometry, placed in functional categories, and compared not only among the N- and C- termini of occludin and the N-terminus of claudin-4, but also with our published inventory of proteins proximal to the adherens junction protein E-cadherin and the tight junction protein ZO-1. When proteomic results were analyzed, the relative distribution among functional categories was similar between occludin and claudin-4 proximal proteins. Apart from already known tight junction- proteins, occludin and claudin-4 proximal proteins were enriched in signaling and trafficking proteins, especially endocytic trafficking proteins. However there were significant differences in the specific proteins comprising the functional categories near each of the tagging proteins, revealing spatial compartmentalization within the junction complex. Taken together, these results expand the inventory of known and unknown proteins at the tight junction to inform future studies of the organization and physiology of this complex structure.

Indexed as

Signal TransductionAnimalsBiological TransportClaudin-4DogsHumansMass SpectrometryOccludinProtein Interaction MappingProteomicsTight JunctionsTransgenesTransport VesiclesClaudin-4CLDN4 protein, humanOccludinOCLN protein, human

Identifiers

PMID25789658
PMCPMC4366163
OpenAlexW2042975288

What OpenQuestion holds

Textmetadata
LicenceCC0
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.