Transcriptome sequencing of brain tissue.
Scatter plot with Spearman correlation analysis between individual brain samples (A), between brain and the most similar peripheral tissue, the adrenal gland (B) and between brain and the least similar tissue, testis (C). 69% of all 20,239 currently known genes are expressed in the frontal cortex (FPKM >1). The majority of these genes are highly (14%) or moderately (32%) expressed in all tissue types (D). The majority (80%) of mRNA molecules in frontal cortex codes for proteins expressed in most tissue types analyzed, 4% of detected transcripts are brain-enhanced and 9% are brain-enriched (E).