FEATURES

DESCRIPTION

Also known as WWP2_HUMAN, WWP2. E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Polyubiquitinates POU5F1 by 'Lys-63'-linked conjugation and promotes it to proteasomal degradation; in embryonic stem cells (ESCs) the ubiquitination is proposed to regulate POU5F1 protein level. Ubiquitinates EGR2 and promotes it to proteasomal degradation; in T-cells the ubiquitination inhibits activation-induced cell death. Ubiquitinates SLC11A2; the ubiquitination is enhanced by presence of NDFIP1 and NDFIP2. Ubiquitinates RPB1 and promotes it to proteasomal degradation. Interacts with POU5F1, RBP1, EGR2 and SLC11A2 (By similarity). Interacts with SCNN1A, SCNN1B, SCNN1G, WBP1, WBP2 and ATN1. Interacts with ERBB4, NDFIP1 AND NDFIP2. Interacts with ARRDC4 (PubMed:23236378). Interacts (via WW domains) with ARRDC1 (via PPxY motifs); ubiquitinates ARRDC1 (PubMed:22315426, PubMed:21191027). Interacts (via WW domains) with ARRDC2 and ARRDC3 (PubMed:21191027).

EXTERNAL LINKS

WWP2

NEDD4-like E3 ubiquitin-protein ligase WWP2

WWP2

Molecular Synopsis