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Goat Anti-PPP2R4 / PP2A Antibody

Peptide-affinity purified goat antibody

  • WB - Goat Anti-PPP2R4 / PP2A Antibody AF1855a
    AF1855a (0.5 µg/ml) staining of Human Liver lysate (lane 1), Mouse Liver (lane 2) and Rat Liver (lane 3) (35 µg protein in RIPA buffer). Primary incubation was 1 hour. Detected by chemiluminescence.
Product Information
  • Applications Legend:
  • WB=Western Blot
  • IHC=Immunohistochemistry
  • IHC-P=Immunohistochemistry (Paraffin-embedded Sections)
  • IHC-F=Immunohistochemistry (Frozen Sections)
  • IF=Immunofluorescence
  • FC=Flow Cytopmetry
  • IC=Immunochemistry
  • ICC=Immunocytochemistry
  • IP=Immunoprecipitation
  • DB=Dot Blot
  • CHIP=Chromatin Immunoprecipitation
  • FA=Fluorescence Assay
  • IEM=Immunoelectronmicroscopy
  • EIA=Enzyme Immunoassay
Primary Accession Q15257
Other Accession NP_821070, 5524, 110854 (mouse), 362102 (rat)
Reactivity Human, Mouse, Rat
Predicted Dog, Cow
Host Goat
Clonality Polyclonal
Concentration 100ug/200ul
Isotype IgG
Calculated MW 40668 Da
Additional Information
Gene ID 5524
Other Names Serine/threonine-protein phosphatase 2A activator,, PP2A, subunit B', PR53 isoform, Phosphotyrosyl phosphatase activator, PTPA, Serine/threonine-protein phosphatase 2A regulatory subunit 4, Serine/threonine-protein phosphatase 2A regulatory subunit B', PPP2R4, PTPA
Format 0.5 mg IgG/ml in Tris saline (20mM Tris pH7.3, 150mM NaCl), 0.02% sodium azide, with 0.5% bovine serum albumin
StorageMaintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
PrecautionsGoat Anti-PPP2R4 / PP2A Antibody is for research use only and not for use in diagnostic or therapeutic procedures.
Protein Information
Name PPP2R4
Synonyms PTPA
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 activity of the PP2A(D):PPP2R4 complex. Is involved in apoptosis; the function appears to be independent from PP2A.
Cellular Location Cytoplasm. Nucleus
Tissue Location Widely expressed.
Research Areas
Citations (0)

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Protein phosphatase 2A is one of the four major Ser/Thr phosphatases and is implicated in the negative control of cell growth and division. Protein phosphatase 2A holoenzymes are heterotrimeric proteins composed of a structural subunit A, a catalytic subunit C, and a regulatory subunit B. The regulatory subunit is encoded by a diverse set of genes that have been grouped into the B/PR55, B'/PR61, and B''/PR72 families. These different regulatory subunits confer distinct enzymatic specificities and intracellular localizations to the holozenzyme. The product of this gene belongs to the B' family. This gene encodes a specific phosphotyrosyl phosphatase activator of the dimeric form of protein phosphatase 2A. Alternative splicing results in multiple transcript variants encoding different isoforms.


Sphingosine interaction with acidic leucine-rich nuclear phosphoprotein-32A (ANP32A) regulates PP2A activity and cyclooxygenase (COX)-2 expression in human endothelial cells. Habrukowich C, et al. J Biol Chem, 2010 Aug 27. PMID 20558741.
Protein phosphatase 2A has an essential role in the activation of gamma-irradiation-induced G2/M checkpoint response. Yan Y, et al. Oncogene, 2010 Jul 29. PMID 20498628.
PP2A regulates tau phosphorylation directly and also indirectly via activating GSK-3beta. Qian W, et al. J Alzheimers Dis, 2010 Jan. PMID 20308788.
Protein phosphatase 2A reactivates FOXO3a through a dynamic interplay with 14-3-3 and AKT. Singh A, et al. Mol Biol Cell, 2010 Mar. PMID 20110348.
Peptidyl-prolyl isomerase 1 regulates protein phosphatase 2A-mediated topographic phosphorylation of neurofilament proteins. Rudrabhatla P, et al. J Neurosci, 2009 Nov 25. PMID 19940183.

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$ 325.00
Cat# AF1855a
(40 western blots)
Availability: 7-10 days
Bulk Size
Seasonal Special on Bulk Order
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