This column shows gene expression in 53 tissues based on RNA-seq data from the Genotype-Tissue Expression (GTEX) project.
By default, the column shows the ratio of expression of a gene in different tissues to the expression of the gene overall. A gene that is more highly expressed in a tissue is colored red, and a less expressed gene is shown in green. Values are colored on a logarithmic scale. Black indicates that a gene is neither over- nor under-expressed in the tissue. Uncolored boxes (white on most browsers) represent missing data. While admittedly somewhat counter-intuitive, these conventions are standard in gene expression datasets (from microarray technology).
A brief summary of the GTEx gene expression methods is available on the related browser track description. For more information about GTEx tissue sample collection, RNA-seq and expression analysis methods, see the GTEx Portal documentation page.
The data for this column was produced and analyzed by the members of the GTEx Consortium and the GTEx Laboratory, Data Analysis, and Coordinating Center (LDACC) at the Broad Institute. and are available by download from the GTEx Portal.