Render Target: STATIC
Render Timestamp: 2024-11-08T10:11:32.010Z
Commit: 3c1f305a63297e594ac8d7bb5424007d592d68be
XML generation date: 2024-04-05 20:22:17.238
Product last modified at: 2024-06-27T13:36:07.163Z
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PDP - Template Name: Blocking Peptide
PDP - Template ID: *******6db2f4c

PP2A C Subunit Blocking Peptide #1067

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    Product Information

    Product Usage Information

    Use as a blocking reagent to evaluate the specificity of antibody reactivity in dot blot protocols.

    Storage

    Supplied in 20 mM potassium phosphate (pH 7.0), 50 mM NaCl, 0.1 mM EDTA, 1 mg/ml BSA and 5% glycerol. 1% DMSO. Store at –20°C.

    Product Description

    This peptide is used to block PP2A C Subunit (52F8) Rabbit mAb #2259 and PP2A C Subunit Antibody #2038 reactivity in dot blot protocols.

    Quality Control

    The quality of the peptide was evaluated by reversed-phase HPLC and by mass spectrometry. The peptide blocks PP2A C Subunit (52F8) Rabbit mAb #2259 and PP2A C Subunit Antibody #2038 signal in dot blot.

    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). The core enzyme consists of catalytic C and regulatory A (or PR65) subunits, with each subunit represented by α and β isoforms (1). Additional regulatory subunits belong to four different families of unrelated proteins. Both the B (or PR55) and B' regulatory protein families contain α, β, γ and δ isoforms, with the B' family also including an ε protein. B'' family proteins include PR72, PR130, PR59 and PR48 isoforms, while striatin (PR110) and SG2NA (PR93) are both members of the B''' regulatory protein family. These B subunits competitively bind to a shared binding site on the core A subunit (1). This variable array of holoenzyme components, particularly regulatory B subunits, allows PP2A to act in a diverse set of functions. PP2A function is regulated by expression, localization, holoenzyme composition and post-translational modification. Phosphorylation of PP2A at Tyr307 by Src occurs in response to EGF or insulin and results in a substantial reduction of PP2A activity (4). Reversible methylation on the carboxyl group of Leu309 of PP2A has been observed (5,6). Methylation alters the conformation of PP2A, as well as its localization and association with B regulatory subunits (6-8).
    For Research Use Only. Not For Use In Diagnostic Procedures.
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