F-box and leucine-rich repeat protein 12 (FBXL12)

F-box and leucine-rich repeat protein 12 (FBXL12) is a member of the F-box protein family, serving as a substrate-recognition component of SCF (SKP1-CUL1-F-box protein) E3 ubiquitin ligase complexes[3][5]. FBXL12 is characterized by an F-box motif and leucine-rich repeats, enabling it to bind SKP1 and select substrate proteins for ubiquitination[3][5]. By targeting proteins such as Ca2+/calmodulin-dependent protein kinase I (CaMKI), Ku80, aldehyde dehydrogenase 3 (ALDH3), and FANCD2 for degradation, FBXL12 plays a key role in regulating the cell cycle, DNA repair, cell differentiation, and T-cell maturation[1][2][4][5]. It is implicated in multiple biological pathways, particularly in cellular response to stress, immune system regulation, and maintaining genomic integrity. Alterations in FBXL12 expression or function have been connected to diseases such as cancer, notably renal carcinoma and breast cancer, due to its effects on the cell cycle and DNA damage response[1][4]. No direct drug interactions or clinical biomarkers are currently recorded, and FBXL12 is not itself considered a well-established therapeutic drug target at this time.

Other names

F-box/LRR-repeat protein 12FBXL12FBL12FLJ20188Fbl12F-box protein FBL12F-box and leucine rich repeat protein 12

Polyubiquitination and subsequent proteasomal degradation of target proteins