| Modification Notes |
F-box (FBX) proteins are critical components of the SCF (Skp1-CUL-1-F-box protein) type E3 ubiquitin ligase complex and are involved in substrate recognition and recruitment for ubiquitination. FBXs are members of a larger family of proteins that are involved in the regulation of a wide variety of cellular processes (including the cell cycle, immune responses, signaling cascades and developmental events) through the targeting of proteins, such as cyclins, cyclin-dependent kinase inhibitors, I˚B-å and ∫-catenin, for proteasomal degradation. FBXO17 (F-box only protein 17), also known as FBG4, FBX17, FBX26 or FBXO26, is a 278 amino acid protein that contains one F-box domain and one F-box associated domain. Expressed in kidney, heart, liver, skeletal muscle, brain and spleen, FBXO17 functions as a substrate-recognition component of of the SCF complex and directly interacts with Skp1 p19 and CUL-1. Multiple isoforms of FBXO17 exist due to alternative splicing events. |