Covalent modification of the oncogene product Mdm2 by the ubiquitin-related protein SUMO1 protects it from ubiquitination and enhances its E3 ligase activity towards p53 in vitro. Disappearance of ...

However, loss of p53 tumour-suppressor activity can also occur through amplification of MDM2. As MDM2 is a negative regulator of p53, this promotes p53 degradation and inhibits p53 tumour ...

Previous research revealed that nuclear factor of activated T cells 1 (NFAT1) is a novel regulator of the mouse double minute 2 homolog (MDM2) oncogene, which acts by directly binding to the MDM2 P2 ...