SRSF9

The protein encoded by this gene is a member of the serine/arginine (SR)-rich family of pre-mRNA splicing factors, which constitute part of the spliceosome. Each of these factors contains an RNA recognition motif (RRM) for binding RNA and an RS domain for binding other proteins. The RS domain is rich in serine and arginine residues and facilitates interaction between different SR splicing factors. In addition to being critical for mRNA splicing, the SR proteins have also been shown to be involved in mRNA export from the nucleus and in translation. Two pseudogenes, one on chromosome 15 and the other on chromosome 21, have been found for this gene.

Full Name

Serine And Arginine Rich Splicing Factor 9

Function

Plays a role in constitutive splicing and can modulate the selection of alternative splice sites. Represses the splicing of MAPT/Tau exon 10.

Biological Process

Biological Process alternative mRNA splicing, via spliceosomeManual Assertion Based On ExperimentIBA:GO_Central
Biological Process mRNA processingManual Assertion Based On ExperimentTAS:ProtInc
Biological Process mRNA splice site selectionManual Assertion Based On ExperimentTAS:ProtInc
Biological Process mRNA splicing, via spliceosomeManual Assertion Based On ExperimentIBA:GO_Central
Biological Process negative regulation of mRNA splicing, via spliceosomeManual Assertion Based On ExperimentIDA:UniProtKB
Biological Process response to alkaloidIEA:Ensembl
Biological Process response to toxic substanceIEA:Ensembl

Cellular Location

Nucleus
Cellular stresses such as heat shock may induce localization to discrete nuclear bodies termed SAM68 nuclear bodies (SNBs), HAP bodies, or stress bodies. Numerous splicing factors including SRSF1/SFRS1/SF2, SRSF7/SFRS7, SAFB and KHDRBS1/SAM68 accumulate at these structures, which may participate in the post-transcriptional regulation of mRNAs in stressed cells.

PTM

Extensively phosphorylated on serine residues in the RS domain.