A recent study published by Sjoblom and colleagues performed comprehensive sequencing of 13,023 human genes and identified mutations in genes specific to breast and colorectal tumors, providing insight into organ-specific tumor biology. Here we present a systematic analysis of the functional classifications of Sjoblom’s “CAN” genes, a subset of these validated mutant genes that identify novel organ-specific biological themes and molecular pathways associated with diseasespecific etiology. This analysis links four somatically mutated genes associated with diverse oncological types to colorectal and breast cancers through established TGF-β1 regulated interactions, revealing mechanistic differences in these cancers and providing potential diagnostic and therapeutic targets
