Figure 3.

Transcript ubiquity for human genes. UniGene contains transcript evidence for most human genes over 45 different tissues. For each gene, we counted the number of tissues in which there was transcript evidence of at least five or more transcripts per million. We separated the numbers of tissues in which transcripts were detected in UniGene into ten bins and calculated the percentage of genes in each of the ten bins. We split the GENCODE 12 genes into three groups, those genes for which we found peptides (‘Detected’ in dark red), those genes for which we did not find peptides that were also in the potential non-coding set (‘Potential NC’ genes marked in yellow) and those for which we did not find peptides but that were not in the potential non-coding set (‘Not Detected’ genes, in orange).