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Render Timestamp: 2024-11-20T10:40:38.650Z
Commit: 5c4accf06eb7154018ba3f54329c7590f97f534a
XML generation date: 2024-10-24 18:14:07.490
Product last modified at: 2024-09-04T15:15:07.408Z
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PDP - Template Name: Antibody Sampler Kit
PDP - Template ID: *******4a3ef3a

Insulin Receptor Substrate Antibody Sampler Kit #3015

    Product Information

    Product Description

    The Insulin Receptor Substrate Antibody Sampler Kit provides an economical means to investigate IRS-1 and IRS-2 signaling and phosphorylation within the cell. The kit contains enough antibody to perform two western blots with each primary antibody.

    Specificity / Sensitivity

    Phospho-IRS-1 (Ser307) Antibody, Phospho-IRS-1 (Ser612) (C15H5) Rabbit mAb and Phospho-IRS-1 (Ser318) Antibody detect endogenous levels of IRS-1 only when phosphorylated at Ser307, Ser612 or Ser318, respectively. Note: Ser318 is the mouse residue; the corresponding human residue is Ser323. IRS-1 Antibody and IRS-2 Antibody detect endogenous levels of total IRS-1 or IRS-2, respectively. The Phospho-IRS-1 (Ser318) antibody cross reacts with a inducible nonspecific band at around 57 kDa.

    Source / Purification

    Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to the carboxy-terminal sequence of human IRS-2 and residues surrounding Ser307 of mouse IRS-1 (homologous to Ser312 of human IRS-1). Polyclonal antibodies are purified by protein A and peptide affinity chromatography. Monoclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser612 of mouse IRS-1, a synthetic peptide corresponding to the sequence surrounding Ser270 of human IRS-1 and a synthetic phosphopeptide corresponding to residues surrounding Ser318 of mouse IRS-1 protein.

    Background

    Insulin receptor substrate 1 (IRS-1) is one of the major substrates of the insulin receptor kinase (1). IRS-1 contains multiple tyrosine phosphorylation motifs that serve as docking sites for SH2-domain containing proteins that mediate the metabolic and growth-promoting functions of insulin (2-4). IRS-1 also contains over 30 potential serine/threonine phosphorylation sites. Ser307 of IRS-1 is phosphorylated by JNK (5) and IKK (6) while Ser789 is phosphorylated by SIK-2, a member of the AMPK family (7). The PKC and mTOR pathways mediate phosphorylation of IRS-1 at Ser612 and Ser636/639, respectively (8,9). Phosphorylation of IRS-1 at Ser1101 is mediated by PKCθ and results in an inhibition of insulin signaling in the cell, suggesting a potential mechanism for insulin resistance in some models of obesity (10).
    For Research Use Only. Not For Use In Diagnostic Procedures.
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    U.S. Patent No. 7,429,487, foreign equivalents, and child patents deriving therefrom.
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