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Fibrillarin (R122) Antibody (IF Specific) #2159

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Inquiry Info. # 2159

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    Supporting Data

    REACTIVITY Mk
    SENSITIVITY Endogenous
    MW (kDa) 37
    SOURCE Rabbit
    Application Key:
    • IF-Immunofluorescence 
    Species Cross-Reactivity Key:
    • Mk-Monkey 

    Product Information

    Product Usage Information

    Application Dilution
    Immunofluorescence (Immunocytochemistry) 1:25

    Storage

    Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.

    Protocol

    Specificity / Sensitivity

    Fibrillarin (R122) Antibody (IF Specific) detects endogenous levels of total fibrillarin protein by immunofluoresence (immunocytochemistry).

    Species Reactivity:

    Monkey

    The antigen sequence used to produce this antibody shares 100% sequence homology with the species listed here, but reactivity has not been tested or confirmed to work by CST. Use of this product with these species is not covered under our Product Performance Guarantee.

    Species predicted to react based on 100% sequence homology:

    Human, Mouse, Rat

    Source / Purification

    Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Arg122 of human fibrillarin. Antibodies are purified by protein A and peptide affinity chromatography.

    Background

    Fibrillarin is a 2'-O-methyltransferase located in fibrillar regions and Cajal bodies of the nucleolus, where RNA transcription and pre-RNA processing take place (1,2). Fibrillarin associates with several other structural proteins as well as box C/D snoRNA to form a complex that functions in pre-rRNA processing, pre-rRNA methylation, and ribosome assembly. This complex catalyzes site-specific 2'-O-ribose methylation of targeted nucleotides within the rRNA sequence (3,4). The sequence, structure, and function of fibrillarin are highly conserved and fibrillarin gene expression is essential for early embryonic development (5).
    For Research Use Only. Not For Use In Diagnostic Procedures.
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