| Synonyms: | BTRC, BETA-TRCP, FBW1A, FBXW1, FBXW1A, FWD1, bTrCP, bTrCP1, betaTrCP, Beta-TRCP |
| Background: | 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. The encoded protein mediates degradation of CD4 via its interaction with HIV-1 Vpu. It has also been shown to ubiquitinate phosphorylated NFKBIA (nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha), targeting it for degradation and thus activating nuclear factor kappa-B. Alternatively spliced transcript variants have been described. A related pseudogene exists in chromosome 6. |
| UniProt Protein Function: | BTRC: 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. |
| UniProt Protein Details: | Protein type:Ubiquitin conjugating system; Motility/polarity/chemotaxis Chromosomal Location of Human Ortholog: 10q24.32 Cellular Component: nucleoplasm; SCF ubiquitin ligase complex; cytosol Molecular Function:protein dimerization activity; protein phosphorylated amino acid binding; protein binding; ubiquitin-protein ligase activity; beta-catenin binding; ligase activity Biological Process: ubiquitin-dependent protein catabolic process; positive regulation of ubiquitin-protein ligase activity during mitotic cell cycle; circadian rhythm; proteasomal ubiquitin-dependent protein catabolic process; protein polyubiquitination; viral reproduction; regulation of cell cycle; positive regulation of proteolysis; positive regulation of transcription, DNA-dependent; protein ubiquitination; positive regulation of circadian rhythm; protein amino acid dephosphorylation; signal transduction; anaphase-promoting complex-dependent proteasomal ubiquitin-dependent protein catabolic process; G2/M transition of mitotic cell cycle; regulation of I-kappaB kinase/NF-kappaB cascade; SCF-dependent proteasomal ubiquitin-dependent protein catabolic process; Wnt receptor signaling pathway; protein destabilization; negative regulation of transcription factor activity; mammary gland epithelial cell proliferation; regulation of circadian rhythm; regulation of ubiquitin-protein ligase activity during mitotic cell cycle; negative regulation of smoothened signaling pathway; mitotic cell cycle; negative regulation of transcription, DNA-dependent |
| NCBI Summary: | 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. The encoded protein mediates degradation of CD4 via its interaction with HIV-1 Vpu. It has also been shown to ubiquitinate phosphorylated NFKBIA (nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha), targeting it for degradation and thus activating nuclear factor kappa-B. Alternatively spliced transcript variants have been described. A related pseudogene exists in chromosome 6. [provided by RefSeq, Mar 2012] |
| UniProt Code: | Q9Y297 |
| NCBI GenInfo Identifier: | 13124271 |
| NCBI Gene ID: | 8945 |
| NCBI Accession: | Q9Y297.1 |
| UniProt Secondary Accession: | Q9Y297,Q5W141, Q5W142, Q9Y213, B5MD49, |
| UniProt Related Accession: | Q9Y297 |
| Molecular Weight: | 605 |
| NCBI Full Name: | F-box/WD repeat-containing protein 1A |
| NCBI Synonym Full Names: | beta-transducin repeat containing E3 ubiquitin protein ligase |
| NCBI Official Symbol: | BTRC |
| NCBI Official Synonym Symbols: | FWD1; FBW1A; FBXW1; bTrCP; FBXW1A; bTrCP1; betaTrCP; BETA-TRCP |
| NCBI Protein Information: | F-box/WD repeat-containing protein 1A; beta-TrCP1; E3RSIkappaB; F-box and WD-repeat protein 1B; epididymis tissue protein Li 2a; pIkappaBalpha-E3 receptor subunit; F-box and WD repeats protein beta-TrCP |
| UniProt Protein Name: | F-box/WD repeat-containing protein 1A |
| UniProt Synonym Protein Names: | E3RSIkappaB; Epididymis tissue protein Li 2a; F-box and WD repeats protein beta-TrCP; pIkappaBalpha-E3 receptor subunit |
| Protein Family: | F-box/WD repeat-containing protein |
| UniProt Gene Name: | BTRC |
| UniProt Entry Name: | FBW1A_HUMAN |
