Jared S Elenbaas et al.
Cell cycle (Georgetown, Tex.), 14(4), 589-597 (2014-12-17)
The RB tumor suppressor, a regulator of the cell cycle, apoptosis, senescence, and differentiation, is frequently mutated in human cancers. We recently described an evolutionarily conserved C-terminal "instability element" (IE) of the Drosophila Rbf1 retinoblastoma protein that regulates its turnover.