Ribosomal RNA-processing protein 8 (UniProt: O43159; also known as Cerebral protein 1, Nucleomethylin) is encoded by the RRP8 (also known as KIAA0409, NML, hucep-1) gene (Gene ID: 23378) in human. Ribosome biosynthesis is one of the most energy-consuming cellular process, which adapts to changes in intracellular energy status. Ribosomal RNA-processing protein 8 is a novel nuclear protein that serves as an essential component of the energy-dependent nucleolar silencing) complex (eNoSC) that mediates silencing of rDNA in response to intracellular energy status and acts by recruiting histone-modifying enzymes. The eNoSC complex is able to sense the energy status of cell: upon glucose starvation or upon elevation of NAD+/NADP+ ratio and activates SIRT1 that leads to deacetylation of histone H3 followed by dimethylation of H3 at Lysine 9 (H3K9me2) by SUV39H1 and the formation of silent chromatin in the rDNA locus. In the complex, RRP8 binds to H3K9me2 and probably acts as a methyltransferase.

Clone 5C7.1 specifically detects Ribosomal RNA-processing protein 8. It targets an epitope with in the C-terminal half.

GST-tagged recombinant fragment corresponding to 98 amino acids from the C-terminal half of human Ribosomal RNA-processing protein 8.

Anti-RRP8, clone 5C7.1, Cat. No. MABE1013, is a highly specific mouse monoclonal antibody, that targets Ribosomal RNA-processing protein 8 and has been tested for use in Immunocytochemistry and Western Blotting.

Immunocytochemistry Analysis: A 1:100 dilution from a representative lot detected RRP8 in HeLa, A431, HUVEC, and NIH/3T3 cells.

Research Category
Epigenetics & Nuclear Function

Evaluated by Western Blotting in HeLa cell lysate.

Western Blotting Analysis: 0.5 µg/mL of this antibody detected RRP8 in HeLa cell lysate.

~53 kDa observed; 50.72 kDa calculated. Uncharacterized bands may be observed in some lysate(s).

Format: Purified

Protein G purified

Purified mouse monoclonal antibody IgG2a in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Stable for 1 year at 2-8°C from date of receipt.

Concentration: Please refer to lot specific datasheet.

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