RNA binding protein fox-1 homolog 1 (UniProt Q9NWB1; also known as Ataxin-2-binding protein 1, Fox-1 homolog A, Hexaribonucleotide-binding protein 1) is encoded by the RBFOX1 (also known as A2BP, A2BP1, FOX1, HRNBP1) gene (Gene ID 54715) in human. The RNA-binding Fox (Rbfox) family of splicing factors is comprised of three members, Rbfox1 (Fox-1 or A2BP1), Rbfox2 (Fox-2 or RBM9), and Rbfox3 (Fox-3, HRNBP3 or NeuN). Rbfox proteins regulate splicing of many neuronal transcripts (pre-mRNAs) by binding the sequence (U)GCAUG in introns flanking alternative exons. A (U)GCAUG motif that lies downstream of the alternative exon generally promotes Rbfox-dependent exon inclusion, whereas an upstream motif will usually repress exon inclusion. Rbfox1 transcript itself is subjected to alternative splicing in response to chronic cell depolarization, resulting in the increased expression of the nuclear, splicing-active Rbfox1 isoform, which in turn leading to increased splicing of Rbfox1 target transcripts of proteins, including N-methyl D-aspartate (NMDA) receptor 1 (Grin1) and a calcium ATPase (Atp2b1), that play important roles in neuronal excitation and calcium homeostasis.
Synonyms: RNA binding protein fox-1 homolog 1, Ataxin-2-binding protein 1, Fox-1 homolog A, Hexaribonucleotide-binding protein 1
Application: Research CategoryEpigenetics & Nuclear Function
Other Notes: Concentration: Please refer to lot specific datasheet.