EXOSC7 Rabbit anti-Human, Mouse, Polyclonal, Proteintech

Description

• 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.