E6AP ubiquitin-protein ligase ; HECT-type ubiquitin transferase E3A ; Human papillomavirus E6-associated protein ; Oncogenic protein-associated protein E6-AP ; Renal carcinoma antigen NY-REN-54 ; E6AP ; EPVE6AP ; HPVE6A
Categories
Elisa
Function
E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and transfers it to its substrates. Several substrates have been identified including the RAD23A and RAD23B, MCM7 (which is involved in DNA replication), annexin A1, the PML tumor suppressor, and the cell cycle regulator CDKN1B. Additionally, may function as a cellular quality control ubiquitin ligase by helping the degradation of the cytoplasmic misfolded proteins. Finally, UBE3A also promotes its own degradation in vivo.
Specificity
Natural and recombinant Human Ubiquitin-protein ligase E3A
Binds UBQLN1 and UBQLN2. Interacts with the 26S proteasome. Interacts with HCV core protein and targets it to degradation. Interacts with the E6 protein of the cancer-associated human papillomavirus types 16 and 18. The E6/E6-AP complex binds to and targets the p53/TP53 tumor-suppressor protein for ubiquitin-mediated proteolysis. Interacts with BPY2.