Evidence map›Paper›PMID 9600940›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1998

Inactivation of the mouse sperm receptor, mZP3, by site-directed mutagenesis of individual serine residues located at the combining site for sperm.

J Chen, E S Litscher, P M Wassarman

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing 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

31 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Article
  5. The Novel Role ofInternational journal of molecular sciences · 2023
    Article
  6. Article
  7. Article
  8. Review
  9. Mammalian egg coat modifications and the block to polyspermy.Molecular reproduction and development · 2020
    Review
  10. Article
  11. Egg Coat Proteins Across Metazoan Evolution.Current topics in developmental biology · 2018
    Review
  12. Review
  13. Article
  14. Article
  15. The maternal to zygotic transition in mammals.Molecular aspects of medicine · 2013
    Review
  16. Review
  17. Article
  18. Article
  19. The Tn antigen-structural simplicity and biological complexity.Angewandte Chemie (International ed. in English) · 2011
    Review
  20. Review
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

3 authors.

J ChenDepartment of Cell Biology and Anatomy, Mount Sinai School of Medicine, One Gustave L. Levy Place, New York, NY 10029-6574, USA.
E S Litscher
P M Wassarman

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To initiate fertilization, mouse sperm bind to Ser- (O-) linked oligosaccharides located at the sperm combining site of zona pellucida glycoprotein mZP3. Apparently, the oligosaccharides are present on one or more of five Ser residues clustered in the carboxyl-terminal region of the mZP3 polypeptide. Here, each of the Ser residues, as well as an intervening Asn residue, was converted to a small, nonhydroxy amino acid by site-directed mutagenesis. Mouse embryonal carcinoma (EC) cells were then stably transfected with the wild-type and mutated mZP3 genes. In each case, transfected cells synthesized and secreted recombinant EC-mZP3 into the culture medium. The glycoproteins were partially purified and assayed for their ability to inhibit binding of sperm to ovulated eggs in vitro. As compared with wild-type EC-mZP3, mutations of Ser-329, Ser-331, or Ser-333 had no effect on sperm receptor activity. Mutation of Asn-330, a potential N-linked glycosylation site, also had no effect on sperm receptor activity. On the other hand, mutation of either Ser-332 or Ser-334, or mutation of Ser-332, Ser-333, and Ser-334, resulted in complete inactivation of EC-mZP3 as a sperm receptor. These results suggest that Ser-332 and Ser-334, residues conserved in mouse, hamster, and human ZP3, are essential for sperm receptor activity.

Indexed as

Receptors, Cell SurfaceAnimalsCell LineCricetinaeEgg ProteinsHumansMaleMembrane GlycoproteinsMiceMutagenesis, Site-DirectedSerineSignal TransductionSpermatozoaZona Pellucida GlycoproteinsEgg ProteinsMembrane GlycoproteinsReceptors, Cell SurfaceSerineZona Pellucida GlycoproteinsZP3 protein, humanZp3 protein, mouse

Identifiers

PMID9600940
PMCPMC27623

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.