RBM9

RNA binding motif protein 9, also known as RBM9 or FOX-2, is a is_associated_with::protein which in humans is encoded by the RBM9 is_associated_with::gene.

Function
RBM9 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 exon splicing in the nervous system and other cell types. The protein binds to a conserved UGCAUG element found downstream of many alternatively spliced exons and promotes inclusion of the alternative exon in mature transcripts. 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.

RBM9, 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 RBM9 activate markers for is_associated_with::apoptosis.