Render Target: STATIC
Render Timestamp: 2024-12-20T10:52:50.688Z
Commit: f2d32940205a64f990b886d724ccee2c9935daff
XML generation date: 2024-08-01 15:24:00.921
Product last modified at: 2024-12-16T19:45:09.179Z
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PDP - Template Name: Polyclonal Antibody
PDP - Template ID: *******59c6464
  1. Products /
  2. Primary Antibodies /
  3. PTPA/PPP2R4 Antibody

PTPA/PPP2R4 Antibody #3330

Filter:
  • WB

    Supporting Data

    REACTIVITY H M R Mk
    SENSITIVITY Endogenous
    MW (kDa) 40
    SOURCE Rabbit
    Application Key:
    • WB-Western Blotting 
    Species Cross-Reactivity Key:
    • H-Human 
    • M-Mouse 
    • R-Rat 
    • Mk-Monkey 

    Product Information

    Product Usage Information

    Application Dilution
    Western Blotting 1:1000

    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

    PTPA/PPP2R4 Antibody detects endogenous levels of total PTPA protein.

    Species Reactivity:

    Human, Mouse, Rat, Monkey

    Source / Purification

    Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to the sequence of human PTPA. Antibodies are purified by protein A and peptide affinity chromatography.

    Background

    Protein phosphatase type 2A (PP2A) is an essential protein serine/threonine phosphatase that is conserved in all eukaryotes. PP2A is a key enzyme within various signal transduction pathways as it regulates fundamental cellular activities such as DNA replication, transcription, translation, metabolism, cell cycle progression, cell division, apoptosis and development (1-3). Active protein phosphatase 2A is composed of both structural (A) and catalytic (C) proteins, and its activity relies on interaction with regulatory (B) subunits. An important PP2A regulatory subunit is PP2A phosphatase activator (PTPA), also known as the PP2A activator regulatory subunit 4 (PPP2R4) (4). This PTPA regulatory protein binds ATP and has isomerase (PPIase) activity, suggesting that PP2A regulation involves a change in phosphatase conformation. The addition of ATP (and Mg2+) results in a correlated increase in both PP2A activation and PTPA isomerase activity (5). While the exact mechanism is still under consideration, evidence suggests that binding of PTPA to the PP2A A-C dimer produces a conformational change in PP2A that shifts phosphatase substrate specificity from phosphoserine to phosphotyrosine substrates (6).

    Database Links

    UniProt ID: Q15257


    Entrez-Gene Id: 5524


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