• Product name
  • Description
    Rabbit polyclonal to PABP
  • Host species
  • Tested applications
    Suitable for: WB, IHC-Pmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse, Rat, Cow
  • Immunogen

    Recombinant fragment, corresponding to a region within amino acids 356-630 of Human PABP (Uniprot ID: P11940).

  • Positive control
    • A549, H1299, HCT116 and MCF7 whole cell lysates; Human Hepatoma tissue.



Our Abpromise guarantee covers the use of ab153930 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB 1/500 - 1/3000. Predicted molecular weight: 71 kDa.
IHC-P 1/100 - 1/1000.


  • Relevance
    The poly(A)-binding protein (PABP), which is found complexed to the 3-prime poly(A) tail of eukaryotic mRNA, is required for poly(A) shortening and translation initiation. Grange et al. (1987) isolated a melanoma cell cDNA encoding human PABP. The predicted 633-amino acid protein contains 4 repeats of an approximately 80-amino acid unit in its N-terminal half. The authors found that this repeat region is highly conserved between human and yeast PABP and is sufficient for poly(A) binding. In vitro translation of the human PABP cDNA yielded a protein with an apparent molecular mass of 73 kD by SDS-PAGE. Northern blot analysis indicated that PABP is expressed as a 2.9-kb mRNA in human melanoma cells. Gorlach et al. (1994) noted that each of the 4 repeats of PABP is a ribonucleoprotein (RNP) consensus sequence RNA-binding domain. They determined that PABP has a pI of approximately 10.3 and is a very abundant, stable protein. Immunofluorescence studies of mammalian cells indicated that PABP is located exclusively in the cytoplasm. However, using both indirect immunofluorescence and tagging of PABP1 by fusion to the green fluorescent protein (GFP), Afonina et al. (1998) demonstrated that PABP1 shuttles between the nucleus and cytoplasm. PABP1 accumulated in the nucleus when transcription was inhibited, suggesting that active transcription is required for nuclear export of PABP1.
  • Cellular localization
    Cytoplasmic. Shuttles between the cytoplasm and the nucleus.
  • Database links
  • Alternative names
    • PAB 1 antibody
    • PAB1 antibody
    • PABP 1 antibody
    • PABP1 antibody
    • PABPC 1 antibody
    • PABPC1 antibody
    • PABPC2 antibody
    • PABPL1 antibody
    • Poly A binding protein 1 antibody
    • Poly A binding protein cytoplasmic 1 antibody
    • poly(A) binding protein, cytoplasmic 1 antibody
    • poly(A) binding protein, cytoplasmic 2 antibody
    • Polyadenylate binding protein 1 antibody
    see all


  • All lanes : Anti-PABP antibody (ab153930) at 1/1000 dilution

    Lane 1 : A549 whole cell lysate
    Lane 2 : H1299 whole cell lysate
    Lane 3 : HCT116 whole cell lysate
    Lane 4 : MCF7 whole cell lysate

    Lysates/proteins at 30 µg per lane.

    Predicted band size: 71 kDa

    7.5% SDS PAGE
  • Immunohistochemical analysis of paraffin-embedded Human hepatoma tissue, labeling PABP with ab153930 at 1/500 dilution.


This product has been referenced in:
  • Pettersson OJ  et al. DDX6 regulates sequestered nuclear CUG-expanded DMPK-mRNA in dystrophia myotonica type 1. Nucleic Acids Res 42:7186-200 (2014). Read more (PubMed: 24792155) »

See 1 Publication for this product

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