Product Name :
IRS-1 (P618) polyclonal antibody Background :
IRS-1, a major substrate of the insulin receptor, is phosphorylated in response to stimulation of cells by insulin, insulin-like growth factor 1 (IGF-1) and interleukin 4 (IL-4). IRS-1 is phosphorylated on serine, threonine and tyrosine residues in a variety of tissues. An insulin-sensitive serine/threonine kinase casein kinase II mediates a portion of the insulin-stimulated serine/threonine phosphorylation of overexpressed IRS-1 in vivo. Thr 502 is identified as the major casein kinase II-catalyzed phosphorylation site in rat IRS-1, and Ser 99 is an additional phosphorylation site catalyzed by casein kinase II. Thus, casein kinase II-catalyzed phosphorylation of IRS-1 may be a component of the intracellular insulin signaling cascade. IRS-1 contains three putative binding sites for 14-3-3 (Ser 270, Ser 374 and Ser 641) and the motif around Ser 270 is located in the phosphortyrosine binding domain of IRS-1, which is responsible for the interaction with the insulin receptor. Product :
Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2 Storage&Stability :
Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles. Specificity :
IRS-1 (P618) polyclonal antibody detects endogenous levels of IRS-1 protein. Immunogen :
Synthetic peptide, corresponding to amino acids 600-650 of Human IRS-1. Conjugate :
Unconjugated Modification :
Unmodification

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  Immunohistochemistry (IHC) analyzes of IRS-1 (P618) pAb in paraffin-embedded human liver carcinoma tissue at 1:100.

Bioworld Biotech only provide peptides for our antibodies and do not provide additional peptide customization services.

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Price/Size :

USD 368/1mg/vial

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Tips: 

For phospho antibody, we provide phospho peptide（0.5mg) and non-phospho peptide(0.5mg).

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Describe :

Blocking peptides are peptides that bind specifically to the target antibody and block antibody binding. These peptide usually contains the epitope recognized by the antibody. Antibodies bound to the blocking peptide no longer bind to the epitope on the target protein. This mechanism is useful when non-specific binding is an issue, for example, in Western blotting (WB) and Immunohistochemistry (IHC). By comparing the staining from the blocked antibody versus the antibody alone, one can see which staining is specific; Specific binding will be absent from the western blot or IHC performed with the neutralized antibody.

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Formula:

Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 10 mg/ml.The purity is >90%,tested by HPLC and MS.

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Storage:

The freeze-dried powder is more stable. For short time at 2-8°C. For long term storage store at -20°C. 

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Note :

This product is for research use only (RUO only). Not for use in diagnostic or therapeutic procedures.

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