Evidence map›Paper›PMID 2493460›Full record

ArticleThe Journal of cell biology1989

Activators of protein kinase C trigger cortical granule exocytosis, cortical contraction, and cleavage furrow formation in Xenopus laevis oocytes and eggs.

W M Bement, D G Capco

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1989. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
18.7field-weighted citation impact, top 1% 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

23 citing papers in PubMed, 108 citations in OpenAlex.

  1. TheBiomolecules · 2025
    Review
  2. Spontaneous Overactivation ofInternational journal of molecular sciences · 2024
    Article
  3. Article
  4. Review
  5. Proteomics of phosphorylation and protein dynamics during fertilization and meiotic exit in theProceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  6. Review
  7. Calcium signaling and meiotic exit at fertilization in Xenopus egg.International journal of molecular sciences · 2014
    Review
  8. Endogenous lactate transport in Xenopus laevis oocyte: dependence on cytoskeleton and regulation by protein kinases.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2008
    Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Analysis of cortical flow models in vivo.Molecular biology of the cell · 2000
    Article
  14. Article
  15. Protein kinase C regulates the interaction between a GABA transporter and syntaxin 1A.The Journal of neuroscience : the official journal of the Society for Neuroscience · 1998
    Article
  16. Article
  17. Article
  18. Article
  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

2 authors at 1 institution in 1 country.

W M BementDepartment of Zoology, Arizona State University, Tempe 85287-1501.
D G Capco
Arizona State University · US

Funding

MATERNAL MRNA AND PROTEIN LOCALIZATIONS IN OOCYTESK04HD000598 · NICHD · ARIZONA STATE UNIVERSITY-TEMPE CAMPUS · PI CAPCO, DAVID G · 1985 to 1989
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NICHD NIH HHS HD 00598NICHD NIH HHS HD 19067
6 · The paper itself

Abstract

Prophase I oocytes, free of follicle cells, and metaphase II eggs of the amphibian Xenopus laevis were subjected to transient treatments with the protein kinase C activators, phorbol 12-myristate 13-acetate (PMA), phorbol 12,13-didecanoate, and 1-olyeoyl-2-acetyl-sn-glycerol. In both oocytes and eggs, these treatments triggered early events of amphibian development: cortical granule exocytosis, cortical contraction, and cleavage furrow formation. Surprisingly, activation of oocytes occurred in the absence of meiotic resumption, resulting in cells with an oocytelike nucleus and interior cytoplasm, but with a zygotelike cortex. PMA-induced activation of oocytes and eggs did not require external calcium, a prerequisite for normal activation of eggs. PMA-induced activation of eggs was inhibited by retinoic acid, a known inhibitor of protein kinase C. In addition, pretreatment of eggs with retinoic acid prevented activation by mechanical stimulation and inhibited activation by calcium ionophore A23187. The results suggest that protein kinase C activation is an integral component of the Xenopus fertilization pathway.

Indexed as

AnimalsCalcimycinCalciumDiglyceridesEnzyme ActivationExocytosisOocytesOvumPhorbol EstersProtein Kinase CTetradecanoylphorbol AcetateTretinoinXenopus laevis1-oleoyl-2-acetylglycerolCalcimycinCalciumDiglyceridesphorbol-12,13-didecanoatePhorbol EstersProtein Kinase CTetradecanoylphorbol AcetateTretinoin

Identifiers

PMID2493460
PMCPMC2115396
OpenAlexW2076397217

What OpenQuestion holds

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LicenceCC BY-NC-SA
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.