Evidence map›Paper›PMID 24739963›Full record

ArticleNature2014

Juno is the egg Izumo receptor and is essential for mammalian fertilization.

Enrica Bianchi, Brendan Doe, David Goulding, Gavin J Wright

Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in Nature, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04962100 (Capacitation-associated Protein Tyrosine Phosphorylation As a Possible Biomarker of Sperm Selection in Sperm from Patients and Donors), which is not on this map. Cited by 300 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
300citing papers in PubMed, 1 pooled it
71.3field-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.

NCT04962100 nacompletednot on this mapstarted 2021, after this paper: background citation

Capacitation-associated Protein Tyrosine Phosphorylation As a Possible Biomarker of Sperm Selection in Sperm from Patients and Donors

TypeinterventionalSponsorVida Recoletas SevillaRan2021 to 2023Enrolled335ConditionsSperm CapacitationArmsAnalysis of capacitation-associated tyrosine phosphorylation in human sperm by flow cytometry
3 · Its place in the literature

Who cites it

300 citing papers in PubMed, 1 synthesis or guideline pooled it, 657 citations in OpenAlex.

  1. Pooled it
  2. Transcriptomic Dynamics Associated With In Vitro Oocyte Competence in Pigs.Reproduction in domestic animals = Zuchthygiene · 2026
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  13. The SPARK complex forms the molecular basis of vertebrate fertilization.bioRxiv : the preprint server for biology · 2026
    Article
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  20. Membrane Fusions During Mammalian Fertilization.Advances in experimental medicine and biology · 2026
    Review

240 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Enrica BianchiCell Surface Signalling Laboratory, Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1SA, UK.
Brendan DoeMouse Production Team, Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1SA, UK.
David GouldingElectron and Advanced Light Microscopy Suite, Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1SA, UK.
Gavin J WrightCell Surface Signalling Laboratory, Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1SA, UK.
Wellcome Sanger Institute · GB

Funding

Wellcome Trust 098051
6 · The paper itself

Abstract

Fertilization occurs when sperm and egg recognize each other and fuse to form a new, genetically distinct organism. The molecular basis of sperm-egg recognition is unknown, but is likely to require interactions between receptor proteins displayed on their surface. Izumo1 is an essential sperm cell-surface protein, but its receptor on the egg has not been described. Here we identify folate receptor 4 (Folr4) as the receptor for Izumo1 on the mouse egg, and propose to rename it Juno. We show that the Izumo1-Juno interaction is conserved within several mammalian species, including humans. Female mice lacking Juno are infertile and Juno-deficient eggs do not fuse with normal sperm. Rapid shedding of Juno from the oolemma after fertilization suggests a mechanism for the membrane block to polyspermy, ensuring eggs normally fuse with just a single sperm. Our discovery of an essential receptor pair at the nexus of conception provides opportunities for the rational development of new fertility treatments and contraceptives.

Indexed as

AnimalsConserved SequenceEvolution, MolecularFemaleFertilityFertilizationGenes, EssentialGlycosylphosphatidylinositolsHumansImmunoglobulinsInfertility, FemaleMaleMammalsMembrane ProteinsMiceOocytesfolate receptor 4, mouseGlycosylphosphatidylinositolsImmunoglobulinsIzumo1 protein, mouseMembrane ProteinsReceptors, Cell Surface

Identifiers

PMID24739963
PMCPMC3998876
OpenAlexW1983611278

What OpenQuestion holds

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Read underepoch 390

Registered trials

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.