This gene encodes a member of the F-box protein family which is characterized by an approximately 40 amino acid motif, the F-box. The F-box proteins constitute one of the four subunits of ubiquitin protein ligase complex called SCFs (SKP1-cullin-F-box), which function in phosphorylation-dependent ubiquitination. The F-box proteins are divided into 3 classes: Fbws containing WD-40 domains, Fbls containing leucine-rich repeats, and Fbxs containing either different protein-protein interaction modules or no recognizable motifs. The protein encoded by this gene belongs to the Fbws class; in addition to an F-box, this protein contains multiple WD-40 repeats. This protein is homologous to Xenopus bTrCP1, yeast Met30, Neurospora Scon2 and Drosophila Slimb proteins. It interacts with HIV-1 Vpu and connects CD4 to the proteolytic machinery. It also associates specifically with phosphorylated IkappaBalpha and beta-catenin destruction motifs, probably functioning in multiple transcriptional programs by activating the NF-kappaB pathway and inhibiting the beta-catenin pathway.
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Protein Aliases: beta-transducin repeat containing protein; beta-TrCP1; E3RSIkappaB; Epididymis tissue protein Li 2a; F-box and WD repeats protein beta-TrCP; F-box and WD-repeat protein 1B; F-box/WD repeat-containing protein 1A; pIkappaBalpha-E3 receptor subunit
Gene Aliases: BETA-TRCP; beta-TrCP1; betaTrCP; BTRC; BTRCP; bTrCP1; FBW1A; FBXW1; FBXW1A; FWD1
UniProt ID: (Human) Q9Y297