| Post Translational Modifications | Phosphorylation at Ser-12 varies during the cell cycle. It is low in resting cells and high in the S phase and the G2/M phase of the cell cycle. Phosphorylation is decreased during late G1 phase. Phosphorylation at Ser-12 promotes homodimerization and is necessary for optimal ubiquitin ligase activity towards CCND1. |
| Function | Substrate recognition component of a SCF (SKP1-CUL1-F-box protein) E3 ubiquitin-protein ligase complex that mediates the ubiquitination and subsequent proteasomal degradation of target proteins. Promotes ubiquitination of cyclin-D1 (CCND1) and its subsequent proteasomal degradation. However, it does not act as a major regulator of CCND1 stability during the G1/S transition. Recognizes TERF1 and promotes its ubiquitination together with UBE2D1. Promotes ubiquitination of FXR1 following phosphorylation of FXR1 by GSK3B, leading to FXR1 degradation by the proteasome. |
| Protein Name | F-Box Only Protein 4 |
| Database Links | Reactome: R-HSA-390471Reactome: R-HSA-8951664Reactome: R-HSA-983168 |
| Cellular Localisation | Cytoplasm |
| Alternative Antibody Names | Anti-F-Box Only Protein 4 antibodyAnti-FBXO4 antibodyAnti-FBX4 antibody |
Information sourced from Uniprot.org
