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Render Timestamp: 2024-11-22T12:02:00.256Z
Commit: 5c4accf06eb7154018ba3f54329c7590f97f534a
XML generation date: 2024-08-01 15:24:28.423
Product last modified at: 2024-11-18T12:45:31.704Z
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PDP - Template Name: Polyclonal Antibody
PDP - Template ID: *******59c6464
  1. Products /
  2. Primary Antibodies /
  3. Phospho-PKCα/β II (Thr638/641) Antibody

Phospho-PKCα/β II (Thr638/641) Antibody #9375

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  • WB

    Supporting Data

    REACTIVITY H M Mk
    SENSITIVITY Endogenous
    MW (kDa) 80, 82
    SOURCE Rabbit
    Application Key:
    • WB-Western Blotting 
    Species Cross-Reactivity Key:
    • H-Human 
    • M-Mouse 
    • 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

    Phospho-PKC alpha/beta II (Thr638/641) Antibody detects PKC alpha only when phosphorylated at threonine 638 and PKC beta II only when phosphorylated at threonine 641. This antibody also reacts with gamma.

    Species Reactivity:

    Human, Mouse, Monkey

    The antigen sequence used to produce this antibody shares 100% sequence homology with the species listed here, but reactivity has not been tested or confirmed to work by CST. Use of this product with these species is not covered under our Product Performance Guarantee.

    Species predicted to react based on 100% sequence homology:

    Rat, Hamster

    Source / Purification

    Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Thr638 of human PKC alpha. Antibodies are purified by protein A and peptide affinity chromatography.

    Background

    Activation of protein kinase C (PKC) is one of the earliest events in a cascade that controls a variety of cellular responses, including secretion, gene expression, proliferation, and muscle contraction (1,2). PKC isoforms belong to three groups based on calcium dependency and activators. Classical PKCs are calcium-dependent via their C2 domains and are activated by phosphatidylserine (PS), diacylglycerol (DAG), and phorbol esters (TPA, PMA) through their cysteine-rich C1 domains. Both novel and atypical PKCs are calcium-independent, but only novel PKCs are activated by PS, DAG, and phorbol esters (3-5). Members of these three PKC groups contain a pseudo-substrate or autoinhibitory domain that binds to substrate-binding sites in the catalytic domain to prevent activation in the absence of cofactors or activators. Control of PKC activity is regulated through three distinct phosphorylation events. Phosphorylation occurs in vivo at Thr500 in the activation loop, at Thr641 through autophosphorylation, and at the carboxy-terminal hydrophobic site Ser660 (2). Atypical PKC isoforms lack hydrophobic region phosphorylation, which correlates with the presence of glutamic acid rather than the serine or threonine residues found in more typical PKC isoforms. The enzyme PDK1 or a close relative is responsible for PKC activation. A recent addition to the PKC superfamily is PKCμ (PKD), which is regulated by DAG and TPA through its C1 domain. PKD is distinguished by the presence of a PH domain and by its unique substrate recognition and Golgi localization (6). PKC-related kinases (PRK) lack the C1 domain and do not respond to DAG or phorbol esters. Phosphatidylinositol lipids activate PRKs, and small Rho-family GTPases bind to the homology region 1 (HR1) to regulate PRK kinase activity (7).

    Database Links

    UniProt ID: P17252 , P05771-2


    Entrez-Gene Id: 5578 , 5579


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    For Research Use Only. Not For Use In Diagnostic Procedures.
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