• Product name
  • Description
    Rabbit polyclonal to PABP
  • Tested applications
    Suitable for: WBmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse, Rat, Sheep, Rabbit, Horse, Chicken, Guinea pig, Cow, Cat, Dog, African green monkey
  • Immunogen

    Synthetic peptide corresponding to a region within internal sequence amino acids 432-481 (RPSPRWTAQG ARPHPFQNMP GAIRPAAPRP PFSTMRPASS QVPRVMSTQR) of human PABP (NP_002559).

  • Positive control
    • HepG2 cell lysate



Our Abpromise guarantee covers the use of ab85770 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 Use a concentration of 1 µg/ml. Predicted molecular weight: 71 kDa. Good results were obtained when blocked with 5% non-fat dry milk in 0.05% PBS-T.


  • 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

Anti-PABP antibody images

  • Anti-PABP antibody (ab85770) at 1 µg/ml + HepG2 cell lysate at 10 µg

    HRP conjugated anti-Rabbit IgG at 1/50000 dilution

    Predicted band size : 71 kDa
    Observed band size : 71 kDa

References for Anti-PABP antibody (ab85770)

ab85770 has not yet been referenced specifically in any publications.

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