Evidence map›Paper›PMID 16698010›Full record

ArticleDevelopmental biology2006

Fertilization triggers localized activation of Src-family protein kinases in the zebrafish egg.

Dipika Sharma, William H Kinsey

Abstract read
In one paragraph

Article in Developmental biology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

17 citing papers in PubMed, 27 citations in OpenAlex.

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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.

Dipika SharmaDepartment of Anatomy and Cell Biology, University of Kansas Medical Center, 3901 Rainbow Boulevard, Kansas City, KS 66160, USA.
William H Kinsey
University of Kansas Medical Center · US

Funding

MODIFICATION OF EGG PLASMA MEMBRANER01HD014846 · NICHD · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI KINSEY, WILLIAM H. · 1985 to 2011
$2.4M
CONFOCAL LIVE CELL IMAG: REPRODUCTIVE SCI: MATERNAL FETUS INTERFACE, HEART DVMTS10RR019279 · NCRR · UNIVERSITY OF KANSAS MEDICAL CENTER · PI KINSEY, WILLIAM H. · 2004 to 2004
$270k
NCRR NIH HHS S10 RR019279NICHD NIH HHS HD 14846NICHD NIH HHS R01 HD014846
6 · The paper itself

Abstract

Fertilization triggers activation of Src-family kinases in eggs of various species including marine invertebrates and lower vertebrates. While immunofluorescence studies have localized Src-family kinases to the plasma membrane or cortical cytoplasm, no information is available regarding the extent to which these kinases are activated in different regions of the zygote. The objective of the present study was to detect the subcellular distribution of activated Src-family kinases in the fertilized zebrafish egg. An antibody specific for the active, non-phosphorylated form of Src-family PTKs was used to detect these activated kinases by immunofluorescence. The results demonstrate that Fyn, and possibly other Src family members are activated by dephosphorylation of the C-terminal tyrosine at fertilization. The activated Src-family kinases are asymmetrically distributed around the egg cortex with an area of higher kinase activity localized adjacent to the micropyle near the presumptive animal pole. Fertilization initially caused elevation of kinase activity in the cytoplasm underlying the micropyle, but this quickly spread to involve the entire zygote cortex. Later, during egg activation, formation of the blastodisc involved concentration of active Src-family kinase in the blastodisc cortex. As cytokinesis began, activated Src-family kinases were no longer limited to the cortex, but became more evenly distributed in the clear apical cytoplasm of the blastomeres. The results demonstrate that the cortex of the zebrafish egg is functionally differentiated and that fertilization triggers localized activation of Src-family kinases at the point of sperm entry, which subsequently progresses through the entire egg cortex.

Indexed as

AnimalsCytokinesisEnzyme ActivationFertilizationFluorescent Antibody TechniqueOvumPhosphorylationProtein TransportProto-Oncogene Proteins c-fynsrc-Family KinasesTissue DistributionZebrafishZebrafish Proteinsfyna protein, zebrafishProto-Oncogene Proteins c-fynsrc-Family KinasesZebrafish Proteins

Identifiers

PMID16698010
PMCPMC4324460
OpenAlexW2086653529

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.