EXOSC3, Polyclonal Antibody

Exosome complex component RRP40; Exosome component 3; Ribosomal RNA-processing protein 40; p10; EXOSC3; RRP40; CGI-102

For Research Use Only. Not for use in diagnostic procedures.

Polyclonal

IgG

Rabbit

>95%,Protein G purified

Liquid

Shipped at 4 degree C. Upon delivery, aliquot and store at -20 degree C or -80 degree C.

Manufactured in an ISO 13485:2003 and EN ISO 13485:2012 Certified Laboratory.

Small volumes of anti-EXOSC3 antibody vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

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. EXOSC3 as peripheral part of the Exo-9 complex stabilizes the hexameric ring of RNase PH-domain subunits through contacts with EXOSC9 and EXOSC5.

ELISA (EIA), Immunohistochemistry (IHC)

Immunohistochemistry of paraffin-embedded human testis tissue using MBS7003524 at dilution of 1:100

17,248 Da

exosome component 3

exosome complex component RRP40

Exosome complex component RRP40

RRP40  [Similar Products]

EXOS3_HUMAN

This gene encodes a non-catalytic component of the human exosome, a complex with 3'-5' exoribonuclease activity that plays a role in numerous RNA processing and degradation activities. Related pseudogenes of this gene are found on chromosome 19 and 21. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jun 2012]

EXOSC3: 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. EXOSC3 as peripheral part of the Exo-9 complex stabilizes the hexameric ring of RNase PH-domain subunits through contacts with EXOSC9 and EXOSC5. Defects in EXOSC3 are the cause of pontocerebellar hypoplasia type 1B (PCH1B). A severe autosomal recessive neurologic disorder characterized by a combination of cerebellar and spinal motor neuron degeneration beginning at birth. There is diffuse muscle weakness, progressive microcephaly, global developmental delay, and brainstem involvement. Belongs to the RRP40 family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Nucleolus; RNA processing; EC 3.1.13.-; Ribonuclease

Chromosomal Location of Human Ortholog: 9p11

Cellular Component: cytoplasm; cytosol; exosome (RNase complex); nuclear exosome (RNase complex); nucleolus; nucleus

Molecular Function: 3'-5'-exoribonuclease activity; exoribonuclease activity; protein binding; RNA binding

Biological Process: DNA deamination; exonucleolytic trimming to generate mature 3'-end of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA); gene expression; isotype switching; mRNA catabolic process, deadenylation-dependent decay; positive regulation of isotype switching; regulation of mRNA stability; rRNA processing

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