Evidence map›Paper›PMID 26157168›Full record

ArticleMolecular biology of the cell2015

Coupling between cytoplasmic concentration gradients through local control of protein mobility in the Caenorhabditis elegans zygote.

Youjun Wu, Huaiying Zhang, Erik E Griffin

Abstract read
In one paragraph

Article in Molecular biology of the cell, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact
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

20 citing papers in PubMed.

  1. Asymmetric distribution of actin-related proteins in the earlybioRxiv : the preprint server for biology · 2026
    Article
  2. Article
  3. Article
  4. PLK-1 regulates MEX-1 polarization in thebioRxiv : the preprint server for biology · 2024
    Article
  5. Article
  6. Modeling protein dynamics inProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. PLK-1 Regulation of Asymmetric Cell Division in the EarlyFrontiers in cell and developmental biology · 2020
    Review
  11. Review
  12. Article
  13. Review
  14. Single-molecule study reveals the frenetic lives of proteins in gradients.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  15. Rapid diffusion-state switching underlies stable cytoplasmic gradients in theProceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  16. Article
  17. Article
  18. Regulation of Cell Polarity by PAR-1/MARK Kinase.Current topics in developmental biology · 2017
    Review
  19. Article
  20. Article
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

3 authors.

Youjun WuDepartment of Biological Sciences, Dartmouth College, Hanover, NH 03755.
Huaiying ZhangDepartment of Biological Sciences, Dartmouth College, Hanover, NH 03755.
Erik E GriffinDepartment of Biological Sciences, Dartmouth College, Hanover, NH 03755 erik.e.griffin@dartmouth.edu.

Funding

Translational Engineering in Cancer (TEC)P30CA023108 · NCI · DARTMOUTH COLLEGE · PI Steven D Leach · 1985 to 2026
$91.3M
Enhancing and expanding the CGC Strain CollectionP40OD010440 · OD · UNIVERSITY OF MINNESOTA · PI Ann E. Rougvie · 2012 to 2026
$7.5M
NCI NIH HHS P30 CA023108NIH HHS P40 OD010440
6 · The paper itself

Abstract

Cell polarity is characterized by the asymmetric distribution of factors at the cell cortex and in the cytoplasm. Although mechanisms that establish cortical asymmetries have been characterized, less is known about how persistent cytoplasmic asymmetries are generated. During the asymmetric division of the Caenorhabditis elegans zygote, the PAR proteins orchestrate the segregation of the cytoplasmic RNA-binding proteins MEX-5/6 to the anterior cytoplasm and PIE-1, POS-1, and MEX-1 to the posterior cytoplasm. In this study, we find that MEX-5/6 control the segregation of GFP::PIE-1, GFP::POS-1, and GFP::MEX-1 by locally increasing their mobility in the anterior cytoplasm. Remarkably, PIE-1, POS-1, and MEX-1 form gradients with distinct strengths, which correlates with differences in their responsiveness to MEX-5/6. We show that MEX-5/6 act downstream of the polarity regulators PAR-1 and PAR-3 and in a concentration-dependent manner to increase the mobility of GFP::PIE-1. These findings suggest that the MEX-5/6 concentration gradients are directly coupled to the establishment of posterior-rich PIE-1, POS-1, and MEX-1 concentration gradients via the formation of anterior-fast, posterior-slow mobility gradients.

Indexed as

AnimalsBody PatterningCaenorhabditis elegansCaenorhabditis elegans ProteinsCarrier ProteinsCell PolarityCytoplasmGreen Fluorescent ProteinsNuclear ProteinsRNA-Binding ProteinsZygoteCaenorhabditis elegans ProteinsCarrier ProteinsGreen Fluorescent Proteinsmex-1 protein, C elegansMEX-5 protein, C elegansMEX-6 protein, C elegansNuclear Proteinspie-1 protein, C elegansPOS-1 protein, C elegansRNA-Binding Proteins

Identifiers

PMID26157168
PMCPMC4551312

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Registered trials

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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.