• Product name

  • Description

    Rabbit polyclonal to PPP2R4
  • Host species

  • Tested applications

    Suitable for: ICC/IF, WBmore details
  • Species reactivity

    Reacts with: Human
    Predicted to work with: Mouse, Rat, Rabbit
  • Immunogen

    Recombinant fragment within Human PPP2R4 (internal sequence). The exact sequence is proprietary.
    Database link: Q15257

  • Positive control

    • ICC/IF: HeLa cells. WB: A549 whole cell lysate.


  • Form

  • Storage instructions

    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term. Avoid freeze / thaw cycle.
  • Storage buffer

    pH: 7.00
    Preservative: 0.01% Thimerosal (merthiolate)
    Constituents: 1.21% Tris, 0.75% Glycine, 20% Glycerol
  • Concentration information loading...
  • Purity

    Immunogen affinity purified
  • Clonality

  • Isotype

  • Research areas


Our Abpromise guarantee covers the use of ab227243 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
ICC/IF 1/100 - 1/1000.
WB 1/500 - 1/3000. Predicted molecular weight: 41 kDa.


  • Function

    PPIases accelerate the folding of proteins. It catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. Acts as a regulatory subunit for serine/threonine-protein phosphatase 2A (PP2A) modulating its activity or substrate specificity, probably by inducing a conformational change in the catalytic subunit, a proposed direct target of the PPIase. Can reactivate inactive phosphatase PP2A-phosphatase methylesterase complexes (PP2A(i)) in presence of ATP and Mg(2+) (By similarity). Reversibly stimulates the variable phosphotyrosyl phosphatase activity of PP2A core heterodimer PP2A(D) in presence of ATP and Mg(2+) (in vitro). The phosphotyrosyl phosphatase activity is dependent of an ATPase activty of the PP2A(D):PPP2R4 complex. Is involved in apoptosis; the function appears to be independent from PP2A.
  • Tissue specificity

    Widely expressed.
  • Sequence similarities

    Belongs to the PTPA-type PPIase family.
  • Cellular localization

    Cytoplasm. Nucleus.
  • Information by UniProt
  • Database links

  • Alternative names

    • subunit B'' antibody
    • KIAA0044 antibody
    • MGC2184 antibody
    • Phosphotyrosyl phosphatase activator antibody
    • PP2A antibody
    • PP2A phosphatase activator antibody
    • PP2A subunit B' antibody
    • PP2A subunit B' isoform PR53 antibody
    • PP2A subunit B' PR53 isoform antibody
    • PPP2R4 antibody
    • PR53 antibody
    • PR53 isoform antibody
    • Protein phosphatase 2, regulatory subunit B-prime antibody
    • Protein phosphatase 2A activator regulatory subunit 4 antibody
    • Protein phosphatase 2A regulatory subunit B' (PR 53) antibody
    • PTPA antibody
    • PTPA_HUMAN antibody
    • Serine/threonine protein phosphatase 2A regulatory subunit B' antibody
    • Serine/threonine-protein phosphatase 2A activator antibody
    • Serine/threonine-protein phosphatase 2A regulatory subunit 4 antibody
    • Serine/threonine-protein phosphatase 2A regulatory subunit B'' antibody
    see all


  • Paraformaldehyde-fixed HeLa (human epithelial cell line from cervix adenocarcinoma) cells stained for PPP2R4 (green) using ab227243 at 1/500 dilution in ICC/IF.

    Alpha-tubulin filaments were labeled red.

  • Anti-PPP2R4 antibody (ab227243) at 1/1000 dilution + A549 (human lung carcinoma cell line) whole cell lysate at 30 µg

    Predicted band size: 41 kDa

    10% SDS-PAGE gel.


ab227243 has not yet been referenced specifically in any publications.

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