FBXO31 Proteins and Enzymes

Belonging to the FBXO31 family, F-box only protein 31 (FBXO31) is a component of the SCF (SKP1-cullin-F-box) ubiquitin ligase complex and is involved in cyclin binding. At the protein level, FBXO31 plays a central role in G1 arrest following DNA damage. More specifically, these F-box proteins interact with SKP1 and recognize phosphorylated cyclin-D1 (CCND1), promoting its ubiquitination and degradation by the proteasome, thus resulting in G1 arrest. Diseases associated with FBXO31 include breast cancer, mast cell neoplasm, esophagitis and carcinoma.