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Related Concept Videos

Spermatogenesis01:41

Spermatogenesis

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 reproductive...
Spermatogenesis01:22

Spermatogenesis

Spermatogenesis is a complex process that involves the development of sperm cells from undifferentiated stem cells in the seminiferous tubules of the testes. The process is essential for the production of mature and functional sperm cells that are capable of fertilizing an egg.
The process of spermatogenesis can be divided into mitosis, meiosis, and spermiogenesis. During mitosis, the spermatogonia or stem cells divide to produce two identical daughter cells, type A and B spermatogonia. Type-A...
Sperm Structure and Semen Composition01:22

Sperm Structure and Semen Composition

During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...
Sperm Transport01:15

Sperm Transport

The journey of sperm from its origin to the point of ejaculation begins within the seminiferous tubules of the testis. Here, Sertoli cells produce fluid that propels non-motile sperm through a series of conduits, starting with the straight tubules leading to the rete testis. This interconnected network of tubules acts as the initial pathway for sperm, guiding them into the efferent ductules and then into the epididymis for maturation.
The maturation phase occurs in the epididymis, where sperm...
Fertilization01:38

Fertilization

During fertilization, an egg and sperm cell fuse to create a new diploid structure. In humans, the process occurs once the egg has been released from the ovary, and travels into the fallopian tubes. The process requires several key steps: 1) sperm present in the genital tract must locate the egg; 2) once there, sperm need to release enzymes to help them burrow through the protective zona pellucida of the egg; and 3) the membranes of a single sperm cell and egg must fuse, with the sperm...
Proteomics01:33

Proteomics

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 proteomics...

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Related Experiment Video

Updated: Jun 25, 2026

Phosphopeptide Analysis of Rodent Epididymal Spermatozoa
09:30

Phosphopeptide Analysis of Rodent Epididymal Spermatozoa

Published on: December 30, 2014

Sperm cell proteomics.

Rafael Oliva1, Sara de Mateo, Josep Maria Estanyol

  • 1Human Genetics Research Group, IDIBAPS, Faculty of Medicine, University of Barcelona, Barcelona, Spain. roliva@ub.edu

Proteomics
|February 13, 2009
PubMed
Summary
This summary is machine-generated.

Spermatozoa, or sperm cells, are ideal for proteomic analysis due to their accessibility and unique differentiation. Mass spectrometry (MS) advancements enable comprehensive cataloging of sperm proteins, aiding fertility research and diagnostics.

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Last Updated: Jun 25, 2026

Phosphopeptide Analysis of Rodent Epididymal Spermatozoa
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Phosphopeptide Analysis of Rodent Epididymal Spermatozoa

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Separation of Spermatogenic Cell Types Using STA-PUT Velocity Sedimentation
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Area of Science:

  • Reproductive Biology
  • Proteomics
  • Cell Biology

Background:

  • Spermatozoa are highly differentiated cells crucial for fertility, embryo development, and heredity.
  • Their accessibility and ease of purification make them suitable for proteomic studies.
  • Significant genetic, cellular, functional, and chromatin changes occur during sperm differentiation.

Purpose of the Study:

  • To review scientific literature on sperm cell composition and function.
  • To highlight the application of mass spectrometry (MS) proteomic approaches in sperm research.
  • To discuss the implications of sperm proteomic data for diagnostics and therapeutics.

Main Methods:

  • Literature review of scientific publications.
  • Focus on studies utilizing mass spectrometry (MS) for proteomic analysis of spermatozoa.
  • Analysis of identified sperm protein catalogues.

Main Results:

  • Mass spectrometry has significantly advanced the identification and study of sperm proteins.
  • Extensive catalogues of hundreds to thousands of sperm proteins are becoming available for human and model species.
  • These proteomic datasets form a foundation for future research and applications.

Conclusions:

  • Proteomic analysis of spermatozoa offers valuable insights into reproductive biology.
  • The growing body of sperm proteomic data supports diagnostic applications and the development of targeted treatments.
  • Further research leveraging MS-based proteomics will enhance our understanding of sperm function and its role in heredity.