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Rat brain proteins: two-dimensional protein database and variations in the expression level.

M Fountoulakis1, E Schuller, R Hardmeier

  • 1F. Hoffmann-La Roche, Pharmaceutical Research, Genomics Technologies, Basel, Switzerland. michael.fountoulakis@roche.com

Electrophoresis
|December 28, 1999
PubMed
Summary

Researchers created a rat brain protein database using advanced techniques. This resource aids in understanding neurological disorders in animal models.

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Area of Science:

  • Neuroscience
  • Proteomics
  • Biochemistry

Background:

  • Understanding the proteome is crucial for studying brain function and disease.
  • Rat models are frequently used to investigate human neurological disorders.

Purpose of the Study:

  • To construct a comprehensive two-dimensional protein database of the newborn rat brain.
  • To identify and catalog proteins present in the developing rat brain.
  • To establish a reference map for future comparative studies.

Main Methods:

  • Two-dimensional electrophoresis (2-DE) was employed to separate proteins from newborn rat brain samples.
  • Matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) was used for precise protein identification.
  • A database of 210 distinct proteins was compiled.

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Main Results:

  • The database includes 210 identified proteins, predominantly structural components, heat shock proteins, and enzymes.
  • Minor quantitative differences in protein expression levels were observed, likely due to allelic variations.
  • A detailed protein map of the newborn rat brain was generated.

Conclusions:

  • The established rat brain protein database provides a valuable resource for neuroscience research.
  • This proteomic map can facilitate studies on neurological disorders using animal models.
  • The findings offer insights into the molecular composition of the developing rat brain.