FBOX21 (F-Box Protein 21): FBOX21 is part of the F-box family of proteins, which play critical roles in the ubiquitin-proteasome system for protein degradation. This system is vital for regulating protein levels within the cell, affecting numerous cellular processes such as cell cycle progression, signal transduction, and apoptosis. FBOX21 specifically is involved in targeting proteins for degradation, thereby maintaining cellular homeostasis. Dysregulation of FBOX21 can lead to various diseases, including cancers, where aberrant protein accumulation or degradation contributes to disease pathogenesis....