Evidence map›Paper›PMID 22427671›Full record

ArticleThe Journal of biological chemistry2012

Excision of Trpv6 gene leads to severe defects in epididymal Ca2+ absorption and male fertility much like single D541A pore mutation.

Petra Weissgerber, Ulrich Kriebs, Volodymyr Tsvilovskyy, Jenny Olausson, Oliver Kretz, Christof Stoerger, Stefanie Mannebach, Ulrich Wissenbach, Rudi Vennekens, Ralf Middendorff and 2 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 22% 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.

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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 76 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Reevaluating the role of TRPV6 deficiency in human and mouse pancreatitis.American journal of physiology. Gastrointestinal and liver physiology · 2026
    Article
  5. Review
  6. TRPV6 channel function is involved in endometrial epithelial cell CaCellular and molecular life sciences : CMLS · 2025
    Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Review
  13. Calcium Homeostasis in the Epididymal Microenvironment:Frontiers in cell and developmental biology · 2022
    Review
  14. Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Uterine Luminal Epithelium as the Transient Gateway for Embryo Implantation.Trends in endocrinology and metabolism: TEM · 2020
    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

12 authors at 3 institutions in 1 country.

Petra WeissgerberExperimentelle und Klinische Pharmakologie und Toxikologie, Universitaet des Saarlandes, Homburg, Germany.
Ulrich Kriebs
Volodymyr Tsvilovskyy
Jenny Olausson
Oliver Kretz
Christof Stoerger
Stefanie Mannebach
Ulrich Wissenbach
Rudi Vennekens
Ralf Middendorff
Veit Flockerzi
Marc Freichel
Universitätsklinikum des Saarlandes · DEHeidelberg University · DEUniversity of Giessen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Replacement of aspartate residue 541 by alanine (D541A) in the pore of TRPV6 channels in mice disrupts Ca(2+) absorption by the epididymal epithelium, resulting in abnormally high Ca(2+) concentrations in epididymal luminal fluid and in a dramatic but incomplete loss of sperm motility and fertilization capacity, raising the possibility of residual activity of channels formed by TRPV6(D541A) proteins (Weissgerber, P., Kriebs, U., Tsvilovskyy, V., Olausson, J., Kretz, O., Stoerger, C., Vennekens, R., Wissenbach, U., Middendorff, R., Flockerzi, V., and Freichel, M. (2011) Sci. Signal. 4, ra27). It is known from other cation channels that introducing pore mutations even if they largely affect their conductivity and permeability can evoke considerably different phenotypes compared with the deletion of the corresponding protein. Therefore, we generated TRPV6-deficient mice (Trpv6(-/-)) by deleting exons encoding transmembrane domains with the pore-forming region and the complete cytosolic C terminus harboring binding sites for TRPV6-associated proteins that regulate its activity and plasma membrane anchoring. Using this strategy, we aimed to determine whether the TRPV6(D541A) pore mutant still contributes to residual channel activity and/or channel-independent functions in vivo. Trpv6(-/-) males reveal severe defects in fertility and motility and viability of sperm and a significant increase in epididymal luminal Ca(2+) concentration that is mirrored by a lack of Ca(2+) uptake by the epididymal epithelium. Therewith, Trpv6 excision affects epididymal Ca(2+) handling and male fertility to the same extent as the introduction of the D541A pore mutation, arguing against residual functions of the TRPV6(D541A) pore mutant in epididymal epithelial cells.

Indexed as

Gene DeletionMutationAnimalsBase SequenceCalciumCalcium ChannelsDNA PrimersEpididymisFemaleFertilityMaleMiceMice, KnockoutSperm MotilityTRPV Cation ChannelsCalciumCalcium ChannelsDNA PrimersTrpv6 protein, mouseTRPV Cation Channels

Identifiers

PMID22427671
PMCPMC3365704
OpenAlexW2003492878

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.