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Immunoreactive ubiquitin in human seminal plasma
T H Lippert1, H Seeger, G Schieferstein
1Department of Obstetrics and Gynecology, University of Tübingen, Germany.
Journal of Andrology
|March 1, 1993
Summary
Ubiquitin, a protein typically found inside cells, was detected in human seminal plasma and spermatozoa. Its levels were higher in seminal plasma than in sperm, with its reproductive role still under investigation.
Area of Science:
- Biochemistry
- Reproductive Biology
- Cell Biology
Background:
- Ubiquitin is a polypeptide protein primarily known for its intracellular functions.
- Its presence and role in extracellular bodily fluids, like seminal plasma, are less understood.
Purpose of the Study:
- To quantify ubiquitin levels in human seminal plasma and spermatozoa.
- To explore the potential role of ubiquitin in human reproduction.
Main Methods:
- Immunological measurement of ubiquitin in 187 human seminal plasma samples.
- Comparison of ubiquitin concentrations between seminal plasma and spermatozoa.
Main Results:
- Ubiquitin was detected in all seminal plasma samples, with concentrations ranging from 1.83 to 19.11 µg/ml.
- Ubiquitin was also found in spermatozoa, but at significantly lower levels compared to seminal plasma.
Conclusions:
- Ubiquitin is present in human seminal plasma and spermatozoa.
- The origin and specific function of ubiquitin in seminal plasma remain to be elucidated.
- Further research is needed to understand ubiquitin's role in reproductive processes.