BTRC (gene)

BTRC
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesBTRC, BETA-TRCP, FBW1A, FBXW1, FBXW1A, FWD1, bTrCP, bTrCP1, betaTrCP, beta-transducin repeat containing E3 ubiquitin protein ligase
External IDsOMIM: 603482; MGI: 1338871; HomoloGene: 39330; GeneCards: BTRC; OMA:BTRC - orthologs
Orthologs
SpeciesHumanMouse
Entrez

8945

12234

Ensembl

ENSG00000166167

ENSMUSG00000025217

UniProt

Q9Y297
Q5T1W7

Q3ULA2

RefSeq (mRNA)

NM_001256856
NM_003939
NM_033637

RefSeq (protein)

NP_001243785
NP_003930
NP_378663

Location (UCSC)Chr 10: 101.35 – 101.56 MbChr 19: 45.35 – 45.52 Mb
PubMed search
Wikidata
View/Edit HumanView/Edit Mouse

F-box/WD repeat-containing protein 1A (FBXW1A) also known as βTrCP1 or Fbxw1 or hsSlimb or pIkappaBalpha-E3 receptor subunit is a protein that in humans is encoded by the BTRC (beta-transducin repeat containing) gene.

This gene encodes a member of the F-box protein family which is characterized by an approximately 40 residue structural motif, the F-box. The F-box proteins constitute one of the four subunits of ubiquitin protein ligase complex called SCFs (Skp1-Cul1-F-box protein), which often, but not always, recognize substrates in a phosphorylation-dependent manner. F-box proteins are divided into 3 classes:

  • Fbxws containing WD40 repeats,
  • Fbxls containing leucine-rich repeats,
  • and Fbxos containing either "other" protein–protein interaction modules or no recognizable motifs.

The protein encoded by this gene belongs to the Fbxw class as, in addition to an F-box, this protein contains multiple WD40 repeats. This protein is homologous to Xenopus βTrCP, yeast Met30, Neurospora Scon2 and Drosophila Slimb. In mammals, in addition to βTrCP1, a paralog protein (called βTrCP2 or FBXW11) also exists, but, so far, their functions appear redundant and indistinguishable.