a substrate-recognition component of the SCF (SKP1-CUL1-F-box protein) ubiquitin ligase complex, which mediates the ubiquitination of proteins involved in cell cycle progression, signal transduction and transcription. Regulates the stability of CTNNB1 and participates in Wnt signaling. Interacts directly with SKP1 in the SCF complex. Interacts specifically with phosphorylated CTNNB1 and NFKBIA, ubiquitination substrates. Two alternatively spliced isoforms have been described. Note: This description may include information from UniProtKB.
Protein type: Motility/polarity/chemotaxis; Ubiquitin conjugating system
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.