Aliases for EXOSC4 Gene
External Ids for EXOSC4 Gene
Previous GeneCards Identifiers for EXOSC4 Gene
GeneCards Summary for EXOSC4 Gene
EXOSC4 (Exosome Component 4) is a Protein Coding gene. Among its related pathways are Transport to the Golgi and subsequent modification and Unfolded Protein Response (UPR). GO annotations related to this gene include 3-5-exoribonuclease activity and exoribonuclease activity. An important paralog of this gene is EXOSC6.
UniProtKB/Swiss-Prot for EXOSC4 Gene
Non-catalytic component of the RNA exosome complex which has 3->5 exoribonuclease activity and participates in a multitude of cellular RNA processing and degradation events. In the nucleus, the RNA exosome complex is involved in proper maturation of stable RNA species such as rRNA, snRNA and snoRNA, in the elimination of RNA processing by-products and non-coding pervasive transcripts, such as antisense RNA species and promoter-upstream transcripts (PROMPTs), and of mRNAs with processing defects, thereby limiting or excluding their export to the cytoplasm. The RNA exosome may be involved in Ig class switch recombination (CSR) and/or Ig variable region somatic hypermutation (SHM) by targeting AICDA deamination activity to transcribed dsDNA substrates. In the cytoplasm, the RNA exosome complex is involved in general mRNA turnover and specifically degrades inherently unstable mRNAs containing AU-rich elements (AREs) within their 3 untranslated regions, and in RNA surveillance pathways, preventing translation of aberrant mRNAs. It seems to be involved in degradation of histone mRNA. The catalytic inactive RNA exosome core complex of 9 subunits (Exo-9) is proposed to play a pivotal role in the binding and presentation of RNA for ribonucleolysis, and to serve as a scaffold for the association with catalytic subunits and accessory proteins or complexes. EXOSC4 binds to ARE-containing RNAs.