InterPro domain: IPR018276

This entry represents the N-terminal domain of DDA1 (DET1- and DDB1-associated protein 1) ubiquitin ligase, which binds strongly with Det1 (De-etiolated 1) and DDB1 (Damaged DNA binding protein 1 associated 1). Together DDA1, DDB1 and Det1 form the DDD core complex, which recruits a specific UBE2E enzyme to form specific DDD-E2 complexes [ 1 ]. Component of the DDD-E2 complexes which may provide a platform for interaction with cul4a and WD repeat proteins. These proteins may be involved in ubiquitination and subsequent proteasomal degradation of target proteins.

1. Mammalian DET1 regulates Cul4A activity and forms stable complexes with E2 ubiquitin-conjugating enzymes. Mol. Cell. Biol. 27, 4708-19