Exosome complex component RRP45

E5269Hu

Sandwich

48T,96T

7.91ng/L

15-3000ng/L

Serum, plasma, cell culture supernates

Human

2-8ºC

1h 30m

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. EXOSC9 binds to ARE-containing RNAs.

48,949

5393

Autoantigen PM/Scl 1;EXOSC9;Exosome complex component RRP45;Exosome component 9;p5;p6;P75 polymyositis-scleroderma overlap syndrome-associated autoantigen;PCH1D;PM/Scl-75;PMSCL1;Polymyositis/scleroderma autoantigen 1;Polymyositis/scleroderma autoantigen 75 kDa;RRP45;Rrp45p

EXOSC9

Immunology

EXOSC9