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Phospho-UPF1 (Ser1107) Antibody #84283

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Inquiry Info. # 84283

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    Product Specifications

    REACTIVITY H M R Mk
    SENSITIVITY Endogenous
    MW (kDa) 140
    SOURCE Rabbit
    Application Key:
    • WB-Western Blotting 
    • IP-Immunoprecipitation 
    Species Cross-Reactivity Key:
    • H-Human 
    • M-Mouse 
    • R-Rat 
    • Mk-Monkey 

    Product Information

    Product Usage Information

    Application Dilution
    Western Blotting 1:1000
    Immunoprecipitation 1:100

    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

    Phospho-UPF1 (Ser1107) Antibody recognizes endogenous levels of UPF1 protein only when phosphorylated at Ser1107.

    Species Reactivity:

    Human, Mouse, Rat, Monkey

    Source / Purification

    Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser1107 of human UPF1 protein. Antibodies are purified by peptide affinity chromatography.

    Background

    UPF1 was identified as an active component in nonsense-mediated mRNA decay (NMD), an mRNA surveillance mechanism in eukaryotic cells that degrades mRNAs containing premature termination codons (1). UPF1 was found to be an ATP-dependent RNA helicase in the cytoplasm (2) and was later shown to be a component of cytoplasmic P-bodies (3). UPF1 phosphorylation mediates the repression of translation that accompanies NMD, allowing mRNA accessibility to the NMD machinery (4). Two other active components of NMD, UPF2 and UPF3, were also identified and described as having perinuclear and nucleocytoplasmic localization, respectively (5).

    SMG-1 can phosphorylate UPF1 on Ser1107, creating a docking site for SMG-5 and SMG-7. This binding enables NMD and the subsequent dissociation of UPF1 from mRNA, allowing for the recycling of ribosomes, release factors, and NMD factors (6,7).

    Alternate Names

    ATP-dependent helicase RENT1; delta helicase; FLJ43809; FLJ46894; hUpf1; KIAA0221; Nonsense mRNA reducing factor 1; NORF1; pNORF1; Regulator of nonsense transcripts 1; RENT1; smg-2; smg-2 homolog, nonsense mediated mRNA decay factor; UP Frameshift 1; up-frameshift mutation 1 homolog; Up-frameshift suppressor 1 homolog; UPF1; UPF1 regulator of nonsense transcripts homolog; UPF1 regulator of nonsense transcripts homolog (yeast); UPF1 RNA helicase and ATPase; yeast Upf1p homolog

    For Research Use Only. Not for Use in Diagnostic Procedures.
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