Evidence map›Paper›PMID 24478462›Full record

ArticleMolecular human reproduction2014

Human PLCζ exhibits superior fertilization potency over mouse PLCζ in triggering the Ca(2+) oscillations required for mammalian oocyte activation.

Michail Nomikos, Maria Theodoridou, Khalil Elgmati, Dimitris Parthimos, Brian L Calver, Luke Buntwal, George Nounesis, Karl Swann, F Anthony Lai

Abstract read
In one paragraph

Article in Molecular human reproduction, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. High rate of detected variants in maleHuman reproduction open · 2024
    Article
  7. Article
  8. Review
  9. Molecular regulation of PLCβ signaling.Methods in enzymology · 2023
    Review
  10. Review
  11. Review
  12. Review
  13. Article
  14. 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

9 authors.

Michail NomikosCardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK mixosn@yahoo.com lait@cf.ac.uk.
Maria TheodoridouCardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK National Center for Scientific Research 'Demokritos', Aghia Paraskevi 15310, Greece.
Khalil ElgmatiCardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK.
Dimitris ParthimosCardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK.
Brian L CalverCardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK.
Luke BuntwalCardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK.
George NounesisNational Center for Scientific Research 'Demokritos', Aghia Paraskevi 15310, Greece.
Karl SwannCardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK.
F Anthony LaiCardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK mixosn@yahoo.com lait@cf.ac.uk.

Funding

Wellcome Trust 080701
6 · The paper itself

Abstract

A sperm-specific phospholipase C-zeta (PLCζ) is believed to play an essential role in oocyte activation during mammalian fertilization. Sperm PLCζ has been shown to trigger a prolonged series of repetitive Ca(2+) transients or oscillations in oocytes that precede activation. This remarkable intracellular Ca(2+) signalling phenomenon is a distinctive characteristic observed during in vitro fertilization by sperm. Previous studies have notably observed an apparent differential ability of PLCζ from disparate mammalian species to trigger Ca(2+) oscillations in mouse oocytes. However, the molecular basis and confirmation of the apparent PLCζ species difference in activity remains to be provided. In the present study, we provide direct evidence for the superior effectiveness of human PLCζ relative to mouse PLCζ in generating Ca(2+) oscillations in mouse oocytes. In addition, we have designed and constructed a series of human/mouse PLCζ chimeras to enable study of the potential role of discrete PLCζ domains in conferring the enhanced Ca(2+) signalling potency of human PLCζ. Functional analysis of these human/mouse PLCζ domain chimeras suggests a novel role of the EF-hand domain in the species-specific differences in PLCζ activity. Our empirical observations are compatible with a basic mathematical model for the Ca(2+) dependence of generating cytoplasmic Ca(2+) oscillations in mammalian oocytes by sperm PLCζ.

Indexed as

AdultAnimalsCalciumCalcium SignalingEscherichia coliFemaleFertilization in VitroGene Expression RegulationGenes, ReporterHumansLuciferasesMaleMiceMutant Chimeric ProteinsOocytesPhosphoinositide Phospholipase CCalciumLuciferasesMutant Chimeric ProteinsPhosphoinositide Phospholipase CPLCZ1 protein, humanPlcz1 protein, mousefertilizationmale infertilityoocyte activationphospholipase CPLCzetasperm

Identifiers

PMID24478462
PMCPMC4023910

What OpenQuestion holds

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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.