[7] Compared to the normal animal cellular Myb (c-myb), v-myb contains deletions in the C-terminal regulatory domain, leading to aberrant activation of other oncogenes.
[9] In maize, phlobaphenes are synthesized in the flavonoids synthetic pathway[10] from polymerisation of flavan-4-ols[11][12] which encodes an R2R3 myb-like transcriptional activator[13] of the A1 gene encoding for the dihydroflavonol 4-reductase (reducing dihydroflavonols into flavan-4-ols)[14] while another gene (Suppressor of Pericarp Pigmentation 1 or SPP1) acts as a suppressor.
[18] Ruby is a MYB transcriptional activator of genes that produce anthocyanin in citrus fruits.
In most citrus varieties Ruby is non-functional, but in blood oranges it upregulates anthocyanin production to produce the characteristic red color of the fruit.
[19] This article incorporates text from the United States National Library of Medicine, which is in the public domain.