Biology:RBM9

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RNA binding motif protein 9 (RBM9), also known as Rbfox2, is a protein which in humans is encoded by the RBM9 gene.[1]

Function

Rbfox2 is one of several human genes similar to the C. elegans gene Fox-1. This gene encodes an RNA binding protein that is thought to be a key regulator of alternative splicing in the nervous system and other cell types. Rbfox2 and the related protein Rbfox1 bind to conserved (U)GCAUG RNA motifs in the introns adjacent to many alternatively spliced exons and promotes inclusion or exclusion of the alternative exon in mature transcripts.[2][3] The protein also interacts with the estrogen receptor 1 transcription factor and regulates estrogen receptor 1 transcriptional activity. Multiple transcript variants encoding different isoforms have been found for this gene.[1]

Rbfox2, as determined by CLIP-seq, binds near alternatively spliced exons and regulates the inclusion or exclusion of exons during alternative splicing by binding in introns either downstream (inclusion) or upstream (exon skipping) of exons. Its presence is important for stem cell survival and knockdowns of Rbfox2 activate markers for apoptosis.[4]

See also

References

  1. 1.0 1.1 "Entrez Gene: RBM9 RNA binding motif protein 9". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=23543. 
  2. Jin, Y. (2003-02-17). "A vertebrate RNA-binding protein Fox-1 regulates tissue-specific splicing via the pentanucleotide GCAUG". The EMBO Journal 22 (4): 905–912. doi:10.1093/emboj/cdg089. ISSN 1460-2075. PMID 12574126. 
  3. Ponthier, Julie L.; Schluepen, Christina; Chen, Weiguo; Lersch, Robert A.; Gee, Sherry L.; Hou, Victor C.; Lo, Annie J.; Short, Sarah A. et al. (2006-03-14). "Fox-2 Splicing Factor Binds to a Conserved Intron Motif to Promote Inclusion of Protein 4.1R Alternative Exon 16". Journal of Biological Chemistry 281 (18): 12468–12474. doi:10.1074/jbc.m511556200. ISSN 0021-9258. PMID 16537540. 
  4. "An RNA code for the FOX2 splicing regulator revealed by mapping RNA-protein interactions in stem cells". Nature Structural & Molecular Biology 16 (2): 130–137. February 2009. doi:10.1038/nsmb.1545. PMID 19136955. 

Further reading

External links

  • Overview of all the structural information available in the PDB for UniProt: O43251 (RNA binding protein fox-1 homolog 2) at the PDBe-KB.