FEATURES

FAMILY

DESCRIPTION

Also known as ASPP2_HUMAN, TP53BP2, ASPP2, BBP. Regulator that plays a central role in regulation of apoptosis and cell growth via its interactions with proteins such as TP53 (PubMed:12524540). Regulates TP53 by enhancing the DNA binding and transactivation function of TP53 on the promoters of proapoptotic genes in vivo. Inhibits the ability of NAE1 to conjugate NEDD8 to CUL1, and thereby decreases NAE1 ability to induce apoptosis. Impedes cell cycle progression at G2/M. Its apoptosis-stimulating activity is inhibited by its interaction with DDX42. Interacts with P53/TP53; the interaction promotes pro-apoptotic activity (PubMed:11684014, PubMed:8016121, PubMed:12524540). Interacts with BCL2 (PubMed:8668206). Interacts with protein phosphatase 1. Interacts with RELA NF-kappa-B subunit. This interaction probably prevents the activation of apoptosis, possibly by preventing its interaction with TP53. Interacts with APC2 and NAE1. Interacts with DDX42 (via the C-terminus); the interaction is not inhibited by TP53BP2 ubiquitination and is independent of p53/TP53.

EXTERNAL LINKS

TP53BP2

Mutations

Mutation(s) distribution

Mutations table