Human sperm proteins identified by 2-dimensional electrophoresis and mass spectrometry and their relevance to a transcriptomic analysis

Reprod Biol. 2018 Jun;18(2):151-160. doi: 10.1016/j.repbio.2018.02.003. Epub 2018 Mar 8.

Abstract

The aim of this study was to identify and analyse human sperm proteins from normozoospermic men using 2-dimensional electrophoresis (2-DE) and mass spectrometry (MS). We identified 73 different sperm proteins, including two less characterized human sperm proteins, Annexin A7 (ANXA7) and c14orf105. Bioinformatic analysis of detected sperm proteins revealed new carbohydrate and lipid metabolic pathways, which supply energy to motile sperm. A comparison of our data with available mRNA microarray data from the human testis allows for validation of identified sperm proteins and aids in the recognition of their physiological pathways.

Keywords: Human sperm proteome; Metabolic pathways; Normozoospermic; Protein electrophoresis; Protein identification.

MeSH terms

  • Annexin A7 / metabolism
  • Electrophoresis, Gel, Two-Dimensional
  • Gene Expression Profiling / methods*
  • Humans
  • Male
  • Mass Spectrometry
  • Proteomics
  • Spermatozoa / metabolism*
  • Testis / metabolism*

Substances

  • Annexin A7