Evidence map›Paper›PMID 22529346›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

Self-regulated viscous channel in the nuclear pore complex.

Jiong Ma, Alexander Goryaynov, Ashapurna Sarma, Weidong Yang

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed
5.2field-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

97 citing papers in PubMed, 150 citations in OpenAlex.

  1. NNature cell biology · 2026
    Article
  2. Review
  3. Review
  4. Article
  5. Review
  6. O-GlcNAc modulation of nuclear pore complexes orchestrates mRNA export efficiency.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Evolutionary trajectory for nuclear functions of ciliary transport complex proteins.Microbiology and molecular biology reviews : MMBR · 2024
    Review
  12. Article
  13. EJNMMI radiopharmacy and chemistry · 2024
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Heme Oxygenase-1 and Its Role in Colorectal Cancer.Antioxidants (Basel, Switzerland) · 2023
    Review
  19. Article
  20. Article

37 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

4 authors at 1 institution in 1 country.

Jiong MaDepartment of Biological Sciences, Center for Photochemical Sciences, Bowling Green State University, Bowling Green, OH 43403, USA.
Alexander Goryaynov
Ashapurna Sarma
Weidong Yang
Bowling Green State University · US

Funding

Three-Dimensional Super-Resolution Microscopy Study of Nuclear TransportR01GM097037 · NIGMS · TEMPLE UNIV OF THE COMMONWEALTH · PI YANG, WEIDONG · 2011 to 2015
$1.3M
Single-Molecule Three-Dimensional Snapshots of Nuclear TransportR15GM094041 · NIGMS · BOWLING GREEN STATE UNIVERSITY · PI YANG, WEIDONG · 2010 to 2010
$348k
NIGMS NIH HHS GM094041NIGMS NIH HHS GM097037NIGMS NIH HHS R01 GM097037NIGMS NIH HHS R15 GM094041
6 · The paper itself

Abstract

The nuclear pore complex (NPC), the sole gateway for nucleocytoplasmic exchange in eukaryotic cells, allows for the passive diffusion of small molecules and transport-receptor-facilitated translocation of signal-dependent cargo molecules. Whether small molecules passively diffuse through a single central channel or through multiple holes of a hydrogel network is a subject of debate. Additionally, whether the passive and facilitated transport systems occupy distinct or overlapping physical regions of the NPC remains unclear. Here, we directly test these models using three-dimensional super-resolution fluorescence microscopy of human cells. This approach reveals that a single viscous central channel in the NPC acts as the sole pathway for passive diffusion of various small molecules; transport receptors and their cargo complexes take distinct transport routes in the periphery, which is occluded by phenylalanine-glycine filaments. Furthermore, the passive and facilitated passageways in the NPC are closely correlated, and their conformations can be simultaneously regulated by Importin β1 (a major transport receptor) and RanGTP (a critical regulator of transport directionality). These results strongly favor a self-regulated viscous channel configuration in native NPCs over the porous hydrogel meshwork model.

Indexed as

Active Transport, Cell Nucleusbeta KaryopherinsCell NucleusGreen Fluorescent ProteinsHeLa CellsHumansImaging, Three-DimensionalMembrane GlycoproteinsMicroscopy, FluorescenceModels, BiologicalNuclear Poreran GTP-Binding Proteinbeta KaryopherinsGreen Fluorescent ProteinsKPNB1 protein, humanMembrane GlycoproteinsPOM121 protein, humanran GTP-Binding Protein

Identifiers

PMID22529346
PMCPMC3358865
OpenAlexW2012077790

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.