E4F1 is an atypical ubiquitin ligase that modulates p53 effector functions independently of degradation
Le Cam, L.; Linares, L. K.; Paul, C.; Julien, E.; Lacroix, M.; Hatchi, E.; Triboulet, R.; Bossis, G.; Shmueli, A.; Rodriguez, M. S.; Coux, O.; Sardet, C.
Cell 2006 / vol 127 / pages 775-88