Evidence map›Paper›PMID 9679145›Full record

ArticleThe Journal of cell biology1998

Cyclic nucleotide-gated channels on the flagellum control Ca2+ entry into sperm.

B Wiesner, J Weiner, R Middendorff, V Hagen, U B Kaupp, I Weyand

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03307655 (Relationship Between Nitric Oxide), which is not on this map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
4.1field-weighted citation impact, top 5% 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.

NCT03307655 naunknown statusnot on this mapstarted 2017, after this paper: background citation

Relationship Between Nitric Oxide (NO) in Follicular Fluid and Sperm Fertilization Ability

TypeinterventionalSponsorIVI MurciaRan2017 to 2019Enrolled82ConditionsMale InfertilityArmsControl (fertile semen donors), Patients (subfertile men)
3 · Its place in the literature

Who cites it

51 citing papers in PubMed, 186 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Immunocytochemical Localization of Olfactory-signaling Molecules in Human and Rat Spermatozoa.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2020
    Article
  8. The Roles of NO and HInternational journal of molecular sciences · 2020
    Review
  9. Article
  10. Article
  11. CatSper channels are regulated by protein kinase A.The Journal of biological chemistry · 2018
    Article
  12. Actiflagelin, a new sperm activator isolated fromThe journal of venomous animals and toxins including tropical diseases · 2018
    Article
  13. Molecular Basis of Human Sperm Capacitation.Frontiers in cell and developmental biology · 2018
    Review
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Article
  20. 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

6 authors at 2 institutions in 1 country.

B WiesnerForschungsinstitut für Molekulare Pharmakologie, D-10315 Berlin.
J Weiner
R Middendorff
V Hagen
U B Kaupp
I Weyand
Eppendorf (Germany) · DEForschungszentrum Jülich · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cyclic nucleotide-gated (CNG) channels are key elements of cGMP- and cAMP-signaling pathways in vertebrate photoreceptor cells and in olfactory sensory neurons, respectively. These channels form heterooligomeric complexes composed of at least two distinct subunits (alpha and beta). The alpha subunit of cone photoreceptors is also present in mammalian sperm. Here we identify one short and several long less abundant transcripts of beta subunits in testis. The alpha and beta subunits are expressed in a characteristic temporal and spatial pattern in sperm and precursor cells. In mature sperm, the alpha subunit is observed along the entire flagellum, whereas the short beta subunit is restricted to the principal piece of the flagellum. These findings suggest that different forms of CNG channels coexist in the flagellum. Confocal microscopy in conjunction with the Ca2+ indicator Fluo-3 shows that the CNG channels serve as a Ca2+ entry pathway that responds more sensitively to cGMP than to cAMP. Assuming that CNG channel subtypes differ in their Ca2+ permeability, dissimilar localization of alpha and beta subunits may give rise to a pattern of Ca2+ microdomains along the flagellum, thereby providing the structural basis for control of flagellar bending waves.

Indexed as

Amino Acid SequenceAniline CompoundsAnimalsBase SequenceCalciumCalcium ChannelsCattleCloning, MolecularCyclic AMPCyclic GMPDNA, ComplementaryDNA PrimersFluorescent DyesGene ExpressionImmunohistochemistryIon TransportAniline CompoundsCalciumCalcium ChannelsCyclic AMPCyclic GMPDNA, ComplementaryDNA PrimersFluo-3Fluorescent DyesXanthenes

Identifiers

PMID9679145
PMCPMC2133051
OpenAlexW1991067937

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.