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Review
. 2009 Jun;6(3):243-9.
doi: 10.1586/epr.09.46.

Dual spatial maps of transcript and protein abundance in the mouse brain

Affiliations
Review

Dual spatial maps of transcript and protein abundance in the mouse brain

Christopher C Park et al. Expert Rev Proteomics. 2009 Jun.

Abstract

Integrating quantitative proteomic and transcriptomic datasets promises valuable insights in unraveling the molecular mechanisms of the brain. We concentrate on recent studies using mass spectrometry and microarray data to investigate transcript and protein abundance in normal and diseased neural tissues. Highlighted are dual spatial maps of these molecules obtained using voxelation of the mouse brain. We demonstrate that the relationship between transcript and protein levels displays a specific anatomical distribution, with greatest fidelity in midline structures and the hypothalamus. Genes are also identified that have strong correlations between mRNA and protein abundance. In addition, transcriptomic and proteomic analysis of mouse models of Parkinson's disease are discussed.

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Figures

Figure 1
Figure 1. Voxelation maps of protein and mRNA levels for selected genes and corresponding ISH images from the Allen Brain Atlas
ISH: In situ hybridization; MS: Mass spectroscopy.
Figure 2
Figure 2. Relationship between mRNA and protein levels
(A) Spatial map of the correlation between detected mRNA and protein levels in a coronal section of the brain. Significance denoted by -log10 p-value of the Pearson correlation coefficient corrected for FDR. (B) Distribution of -log10 p-values for each gene across all voxels corrected for FDR. FDR: False-discovery rate.
Figure 3
Figure 3. Relationship between codon-use frequency and translation efficiency
Percent usage difference shown between the efficiently and inefficiently translated proteins for each codon. Codons ranked from most to least commonly used in the mouse genome.

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