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Monoclonal Antibody Against PNPase (Clone 3H5)

Technology Benefits: Specific antibody to detect mtPAP (clone 1D3) by antibody-antigen complex formation.

Technology Application: Immunocytochemistry/immunofluorescence (1:100-1:1000)* Immunoprecipitation Western blot * Suggested dilutions

Detailed Technology Description: RNA-binding protein implicated in numerous RNA metabolic processes. Catalyzes the phosphorolysis of single-stranded polyribonucleotides processively in the 3'-to-5' direction. Mitochondrial intermembrane factor with RNA-processing exoribonuclease activity. Component of the mitochondrial degradosome (mtEXO) complex, that degrades 3' overhang double-stranded RNA with a 3'-to-5' directionality in an ATP-dependent manner. Required for correct processing and polyadenylation of mitochondrial mRNAs. Plays a role as a cytoplasmic RNA import factor that mediates the translocation of small RNA components, like the 5S RNA, the RNA subunit of ribonuclease P and the mitochondrial RNA-processing (MRP) RNA, into the mitochondrial matrix. Plays a role in mitochondrial morphogenesis and respiration; regulates the expression of the electron transport chain (ETC) components at the mRNA and protein levels. In the cytoplasm, shows a 3'-to-5' exoribonuclease mediating mRNA degradation activity; degrades c-myc mRNA upon treatment with IFNB1/IFN-beta, resulting in a growth arrest in melanoma cells. Regulates the stability of specific mature miRNAs in melanoma cells; specifically and selectively degrades miR-221, preferentially. Plays also a role in RNA cell surveillance by cleaning up oxidized RNAs. Binds to the RNA subunit of ribonuclease P, MRP RNA and miR-221 microRNA. The described mouse monoclonal antibody binds to human mtPAP and has been described for use in immunocytochemistry/immunofluorescence, immunoprecipitation, and western blot.

Others

Related Materials

Protein-protein interactions between human exosome components support the assembly of RNase PH-type subunits into a six-membered PNPase-like ring.

Additional Technologies by these Inventors

Tech ID/UC Case

25121/2011-375-0

Related Cases

2011-375-0, 2011-387-0, 2011-386-0, 2011-385-0, 2011-384-0, 2011-383-0, 2011-382-0

*Abstract: Mouse monoclonal antibody against the human mitochondrial polyribonucleotide nucleotidyltransferase 1 (PNPase). This antibody has been tested for use in immunocytochemistry/immunofluorescence, immunoprecipitation, and western blot.

*Principal Investigator: Name: Xuning Guo
Department:

Name: Wen Hwa Lee
Department:

Country/Region: USA

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