Evidence map›Paper›PMID 1714912›Full record

ArticleThe Journal of cell biology1991

Evidence for the involvement of microtubules, ER, and kinesin in the cortical rotation of fertilized frog eggs.

E Houliston, R P Elinson

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1991. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.9field-weighted citation impact, top 8% 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

19 citing papers in PubMed, 98 citations in OpenAlex.

  1. Article
  2. Article
  3. Vertebrate Axial Patterning: From Egg to Asymmetry.Advances in experimental medicine and biology · 2017
    Review
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  15. Microtubule-mediated transport of organelles and localization of beta-catenin to the future dorsal side of Xenopus eggs.Proceedings of the National Academy of Sciences of the United States of America · 1997
    Article
  16. Article
  17. Independence of two microtubule systems in fertilized frog eggs: the sperm aster and the vegetal parallel array.Roux's archives of developmental biology : the official organ of the EDBO · 1993
    Article
  18. Article
  19. 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.

E HoulistonDepartment of Zoology, University of Toronto, Ontario, Canada.
R P Elinson
University of Toronto · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

During the first cell cycle, the vegetal cortex of the fertilized frog egg is translocated over the cytoplasm. This process of cortical rotation creates regional cytoplasmic differences important in later development, and appears to involve an array of aligned microtubules that forms transiently beneath the vegetal cortex. We have investigated how these microtubules might be involved in generating movement by analyzing isolated cortices and sections of Xenopus laevis and Rana pipiens eggs. First, the polarity of the cortical microtubules was determined using the "hook" assay. Almost all microtubules had their plus ends pointing in the direction of cortical rotation. Secondly, the association of microtubules with other cytoplasmic elements was examined. Immunofluorescence revealed that cytokeratin filaments coalign with the microtubules. The timing of their appearance and their position on the cytoplasmic side of the microtubules suggested that they are not involved directly in generating movement. ER was visualized with the dye DiIC16(3) and by immunofluorescence with anti-BiP (Bole, D. G., L. M. Hendershot, and J. F. Kearney, 1986. J. Cell Biol. 102:1558-1566). One layer of ER was found closely underlying the plasma membrane at all times. An additional, deeper layer formed in association with the microtubules of the array. Antibodies to sea urchin kinesin (Ingold, A. L., S. A. Cohn, and J. M. Scholey. 1988. J. Cell Biol. 107:2657-2667) detected antigens associated with both the ER and microtubules. On immunoblots they recognized microtubule associated polypeptide(s) of approximately 115 kD from Xenopus eggs. These observations are consistent with a role for kinesin in creating movement between the microtubules and ER, which leads in turn to the cortical rotation.

Indexed as

FertilizationAdenosine TriphosphatasesAdenylyl ImidodiphosphateAnimalsCell MovementCleavage Stage, OvumEndoplasmic ReticulumFluorescent Antibody TechniqueIntermediate FilamentsKeratinsKinesinsMicroscopy, FluorescenceMicrotubulesRana pipiensXenopus laevisAdenosine TriphosphatasesAdenylyl ImidodiphosphateKeratinsKinesins

Identifiers

PMID1714912
PMCPMC2289112
OpenAlexW2168208872

What OpenQuestion holds

Textmetadata
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.