Evidence map›Paper›PMID 21805633›Full record

ArticleProteomics2011

Identification and validation of mouse sperm proteins correlated with epididymal maturation.

Takashi W Ijiri, Tanya Merdiushev, Wenlei Cao, George L Gerton

Open access · bronzeAbstract read
In one paragraph

Article in Proteomics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
4.6field-weighted citation impact, top 6% 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

23 citing papers in PubMed, 56 citations in OpenAlex.

  1. Article
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  8. Circular RNAs fromScience advances · 2020
    Article
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  19. Article
  20. Sperm proteomics: road to male fertility and contraception.International journal of endocrinology · 2013
    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

4 authors at 1 institution in 1 country.

Takashi W IjiriCenter for Research on Reproduction and Women's Health, Department of Obstetrics and Gynecology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104-6080, USA.
Tanya Merdiushev
Wenlei Cao
George L Gerton
University of Pennsylvania · US

Funding

Translational Research Support CoreP30ES013508 · NIEHS · UNIVERSITY OF PENNSYLVANIA · PI Rebecca A Simmons · 2006 to 2026
$35.3M
REPRODUCTIVE BIOLOGYP01HD006274 · NICHD · UNIVERSITY OF PENNSYLVANIA · PI GERTON, GEORGE L. · 1985 to 2006
$8.7M
RESEARCH AND TRAINING IN REPRODUCTIVE BIOLOGYT32HD007305 · NICHD · UNIVERSITY OF PENNSYLVANIA · PI COUTIFARIS, CHRISTOS · 1986 to 2010
$1.8M
Cyclic AMP Action During Sperm FunctionR01HD051999 · NICHD · UNIVERSITY OF PENNSYLVANIA · PI GERTON, GEORGE L. · 2008 to 2012
$1.7M
NICHD NIH HHS P01 HD006274NICHD NIH HHS P01HD06274NICHD NIH HHS R01 HD051999NICHD NIH HHS R01HD051999NICHD NIH HHS T32 HD007305NICHD NIH HHS T32HD007305NIEHS NIH HHS P30 ES013508NIEHS NIH HHS P30ES013508
6 · The paper itself

Abstract

Sperm need to mature in the epididymis to become capable of fertilization. To understand the molecular mechanisms of mouse sperm maturation, we conducted a proteomic analysis using saturation dye labeling to identify proteins of caput and cauda epididymal sperm that exhibited differences in amounts or positions on two-dimensional gels. Of eight caput epididymal sperm-differential proteins, three were molecular chaperones and three were structural proteins. Of nine cauda epididymal sperm-differential proteins, six were enzymes of energy metabolism. To validate these proteins as markers of epididymal maturation, immunoblotting and immunofluorescence analyses were performed. During epididymal transit, heat shock protein 2 was eliminated with the cytoplasmic droplet and smooth muscle γ-actin exhibited reduced fluorescence from the anterior acrosome while the signal intensity of aldolase A increased, especially in the principal piece. Besides these changes, we observed protein spots, such as glutathione S-transferase mu 5 and the E2 component of pyruvate dehydrogenase complex, shifting to more basic isoelectric points, suggesting post-translational changes such dephosphorylation occur during epididymal maturation. We conclude that most caput epididymal sperm-differential proteins contribute to the functional modification of sperm structures and that many cauda epididymal sperm-differential proteins are involved in ATP production that promotes sperm functions such as motility.

Indexed as

ProteomicsAnimalsElectrophoresis, Gel, Two-DimensionalEpididymisFluorescent Antibody TechniqueImmunoblottingMaleMiceReproducibility of ResultsSpermatozoaSperm Maturation

Identifiers

PMID21805633
PMCPMC3517136
OpenAlexW2137890842

What OpenQuestion holds

Textmetadata
LicenceTDM
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.