Evidence map›Paper›PMID 8529092›Full record

ArticleMolecular medicine (Cambridge, Mass.)1995

Odorant receptors and desensitization proteins colocalize in mammalian sperm.

L D Walensky, A J Roskams, R J Lefkowitz, S H Snyder, G V Ronnett

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Molecular medicine (Cambridge, Mass.), 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

22 citing papers in PubMed, 103 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. 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
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Impact of glycosylation on the unimpaired functions of the sperm.Clinical and experimental reproductive medicine · 2015
    Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Expression of the G-protein alpha-subunit gustducin in mammalian spermatozoa.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2007
    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

5 authors at 3 institutions in 1 country.

L D WalenskyDepartment of Pharmacology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
A J Roskams
R J Lefkowitz
S H Snyder
G V Ronnett
Johns Hopkins Medicine · USJohns Hopkins University · USDuke University Hospital · US

Funding

NIDA NIH HHS DA 00266NIDCD NIH HHS F32 DC00121-02NIGMS NIH HHS GM 07309
6 · The paper itself

Abstract

backgroundThe identification of transcripts encoding putative olfactory receptors in mammalian germ cells (1) has generated the hypothesis that olfactory receptors may serve a chemosensory role in sperm chemotaxis during fertilization. We have sought to identify and localize these receptors and their regulatory machinery in rat sperm in order to gain further insight into mammalian sperm chemotaxis and odorant receptor physiology. MATERIALS AND

methodsWe conducted reverse transcription-polymerase chain reaction (RT-PCR) using degenerate primers directed against sequences conserved across members of the known odorant receptor family to identify transcripts from testis and round spermatids. Western analysis and immunohistochemistry were performed using antibodies raised against two peptide sequences conserved among odorant receptors and using fusion protein antibodies to G-protein receptor kinase 3 (GRK3/beta ARK2) and beta-arrestin2.

resultsWe detected transcripts encoding putative odorant receptors in both testis and round spermatids of the adult rat. Restriction digests of the PCR products demonstrated the existence of multiple gene products. Two anti-odorant receptor antibodies specifically recognized a 64 kD band in rat sperm preparations by Western blot. The proteins GRK3 and beta-arrestin2, implicated in olfactory desensitization, were detected in sperm cytosolic extracts using Western analysis. Immunohistochemistry colocalized putative odorant receptors, GRK3 and beta-arrestin2 to elongating spermatids in the testis and to the midpiece of mature sperm.

conclusionsThe specific localization of odorant receptors to the respiratory center of mature sperm is consistent with a role for these proteins in transducing chemotactic signals. Based on the colocalization, it is plausible that GRK3 and beta-arrestin2 function in sperm to regulate putative chemoreceptor responses.

Indexed as

ArrestinsProtein Serine-Threonine KinasesAnimalsAntibodiesAntigensBase Sequencebeta-ArrestinsBlotting, WesternBrainDNA PrimersEye ProteinsFluorescent Antibody Technique, IndirectG-Protein-Coupled Receptor Kinase 3HumansImmunohistochemistryMaleAntibodiesAntigensArrestinsbeta-ArrestinsDNA PrimersEye ProteinsG-Protein-Coupled Receptor Kinase 3GRK3 protein, humanGrk3 protein, ratPeptide FragmentsProtein Serine-Threonine KinasesReceptor Protein-Tyrosine KinasesReceptors, OdorantRecombinant Fusion Proteins

Identifiers

PMID8529092
PMCPMC2229940
OpenAlexW2954030

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.