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Related Concept Videos

Spermatogenesis01:41

Spermatogenesis

103.7K
Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
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Proteomics01:33

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A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
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Related Experiment Video

Updated: Sep 28, 2025

Phosphopeptide Analysis of Rodent Epididymal Spermatozoa
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Recent progress of proteomic analysis on spermatogenesis†.

Haotian Zhang1, Chenghao Situ1, Xuejiang Guo1

  • 1State Key Laboratory of Reproductive Medicine, Department of Histology and Embryology, Nanjing Medical University, Nanjing, China.

Biology of Reproduction
|April 3, 2022
PubMed
Summary

Testis proteomics reveals diverse proteins and modifications crucial for sperm generation. This review highlights advancements in mass spectrometry for understanding spermatogenesis molecular mechanisms.

Keywords:
male infertilitypost-translational modificationsproteomicsspermspermatogenesis

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Area of Science:

  • Reproductive Biology
  • Proteomics
  • Molecular Biology

Background:

  • The testis is a highly complex organ with a vast array of proteins essential for spermatogenesis.
  • Spermatogenesis, the process of sperm generation, involves intricate molecular events where protein and mRNA levels can be decoupled.
  • Understanding these molecular mechanisms is vital for reproductive health.

Purpose of the Study:

  • To provide an overview of recent advancements in proteomics applied to spermatogenesis.
  • To discuss the analysis of protein expression and post-translational modifications during sperm development.
  • To highlight the role of mass spectrometry in elucidating the molecular basis of spermatogenesis.

Main Methods:

  • Utilizing mass spectrometry-based proteomics to systematically analyze protein abundances.
  • Investigating protein expression profiles in testis and sperm.
  • Characterizing various post-translational modifications including phosphorylation, glycosylation, ubiquitylation, and acetylation.

Main Results:

  • Proteomics enables comprehensive study of the testis proteome and sperm proteome.
  • Identification of numerous tissue-specific proteins involved in spermatogenesis.
  • Characterization of dynamic changes in protein expression and post-translational modifications during sperm development.

Conclusions:

  • Proteomics is a powerful tool for dissecting the molecular complexity of spermatogenesis.
  • Advancements in mass spectrometry have significantly improved our understanding of protein dynamics in the testis.
  • Further proteomic research is essential for unraveling the intricate mechanisms of male fertility and infertility.