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Genetic analysis of the mouse brain proteome
Joachim Klose1, Christina Nock, Marion Herrmann
1Institut für Humangenetik, Humboldt-Universität zu Berlin, Charité, Campus Virchow-Klinikum, Augustenburger Platz 1, D-13353 Berlin, Germany. joachim.klose@charite.de
Nature Genetics
|March 26, 2002
Summary
This study analyzed mouse brain proteomes, identifying thousands of proteins and genetic variations. Protein differences often mapped to new locations, suggesting complex genetic influences relevant to disease studies.
Area of Science:
- Genomics
- Proteomics
- Neuroscience
Background:
- Proteome analysis is crucial for understanding gene function.
- Systematic functional genomics requires detailed proteome data.
Purpose of the Study:
- To resolve and genetically map proteins in the mouse brain proteome.
- To investigate protein polymorphism and its genetic basis.
Main Methods:
- Large-gel two-dimensional electrophoresis for protein resolution.
- Mass spectrometry for protein identification.
- Genetic mapping using an interspecific backcross population.
Main Results:
- Resolved 8,767 mouse brain proteins.
- Detected 1,324 polymorphic proteins, mapping 665 genetically.
- Identified 466 proteins via mass spectrometry.
- Found protein variations often map to different chromosomal positions than structural genes.
Conclusions:
- Single proteins can exhibit polygenic traits.
- Genetic analysis of proteomes can reveal polymorphisms relevant to disease association.