Gel-free analysis of the human brain proteome: application of liquid chromatography and mass spectrometry on biopsy and autopsy samples

Proteomics. 2006 Sep;6(18):4967-77. doi: 10.1002/pmic.200600080.

Abstract

This paper reports on the findings of the Biomedical Research Institute, as one of the participants in the pilot study of the HUPO Brain Proteome Project. A biopsy and autopsy study sample derived from human brain was distributed among the participants for proteomic analysis. In our laboratory, attention was focused on protein identification using the bottom-up shotgun approach. Protein extracts derived from both samples were trypsinized and analyzed separately by 2-D LC and MS. In a complementary approach, the tryptic digests were analyzed directly by LC-ESI-MS/MS and gas-phase fractionation in the mass spectrometer. Taken together, both proteomic approaches in combination with a stringent evaluation process, resulted in the confident identification of 209 proteins in the human brain samples under investigation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Autopsy
  • Biopsy
  • Brain / metabolism*
  • Brain / pathology
  • Chromatography, Liquid
  • Epilepsy, Temporal Lobe / metabolism
  • Epilepsy, Temporal Lobe / pathology
  • Humans
  • Image Processing, Computer-Assisted
  • Male
  • Middle Aged
  • Pilot Projects
  • Prostatic Neoplasms / metabolism
  • Prostatic Neoplasms / pathology
  • Proteome / metabolism*
  • Spectrometry, Mass, Electrospray Ionization

Substances

  • Proteome