E2F5 and cancer: Five, the transforming growth factor beta 1 (TGFB1), B-cell CLL/lymphoma 2 (BCL2), replication factor C (activator 1) 2, 40kDa (RFC2); E2F transcription factor 5, p130-binding (E2F5), and v-myc myelocytomatosis viral cancer gene homolog (MYC) were among the cancer “hallmark” genes discussed in [50].