Evidence map›Paper›PMID 19211808›Full record

ArticleBiology of reproduction2009

Egg coat proteins activate calcium entry into mouse sperm via CATSPER channels.

Jingsheng Xia, Dejian Ren

Abstract read
In one paragraph

Article in Biology of reproduction, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing 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

35 citing papers in PubMed.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Review
  6. CatSper Calcium Channels: 20 Years On.Physiology (Bethesda, Md.) · 2023
    Review
  7. CatSper and its CaM-like CaFASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2022
    Article
  8. Article
  9. Review
  10. Review
  11. Molecular Mechanism Underlying the Action ofFrontiers in cell and developmental biology · 2020
    Article
  12. CatSper channels are regulated by protein kinase A.The Journal of biological chemistry · 2018
    Article
  13. Review
  14. Article
  15. Article
  16. Regulation and roles of Ca2+ stores in human sperm.Reproduction (Cambridge, England) · 2015
    Review
  17. Article
  18. Review
  19. Article
  20. Intracellular pH in sperm physiology.Biochemical and biophysical research communications · 2014
    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

2 authors.

Jingsheng XiaDepartment of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.
Dejian Ren

Funding

Cyclic Nucleotide-Activated Calcium Channels in SpermR01HD047578 · NICHD · UNIVERSITY OF PENNSYLVANIA · PI REN, DEJIAN · 2004 to 2010
$1.7M
The Protein Complex of a Sperm Ion ChannelR03HD045290 · NICHD · UNIVERSITY OF PENNSYLVANIA · PI REN, DEJIAN · 2005 to 2006
$157k
NICHD NIH HHS 1R01HD045290NICHD NIH HHS 1R01HD047578NICHD NIH HHS R01 HD047578NICHD NIH HHS R03 HD045290
6 · The paper itself

Abstract

During mammalian fertilization, the contact between sperm and egg triggers increases in intracellular Ca(2+) concentration ([Ca(2+)](i)) in sperm. Voltage-gated Ca(2+) channels (Ca(V)s) are believed to mediate the initial phase of [Ca(2+)](i) increases in sperm induced by egg coat (zona pellucida [ZP]) glycoproteins, while store depletion-activated Ca(2+) entry is thought to mediate the sustained phase. Using patch-clamp recording and Ca(2+) imaging, we show herein that Ca(V) channel currents, while found in spermatogenic cells, are not detectable in epididymal sperm and are not essential for the ZP-induced [Ca(2+)](i) changes. Instead, CATSPER channels localized in the distal portion of sperm (the principal piece) are required for the ZP-induced [Ca(2+)](i) increases. Furthermore, the ZP-induced [Ca(2+)](i) increase starts from the sperm tail and propagates toward the head.

Indexed as

AnimalsCalciumCalcium ChannelsEgg ProteinsEpididymisFemaleMaleMembrane GlycoproteinsMiceMice, Inbred C57BLPatch-Clamp TechniquesReceptors, Cell SurfaceSpermatozoaZona PellucidaZona Pellucida GlycoproteinsCalciumCalcium ChannelsCatsper1 protein, mouseEgg ProteinsMembrane GlycoproteinsReceptors, Cell SurfaceZona Pellucida Glycoproteins

Identifiers

PMID19211808
PMCPMC2804799

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.