Anti-Phospho-IRS1 (Ser323) Rabbit Polyclonal Antibody
Product Information
Downloads & Supports
Target
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IRS1
Host
Storage
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Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.
Clonality
Clone Number
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-
Isotype
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IgG
Reactivity
Application
Application Details
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WB: 1/500-1/1000 IHC: 1/50-1/200 IF: 1/50-1/200
Immunogen
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Synthetic phosphopeptide derived from human IRS-1 around the phosphorylation site of Serine 323.
Molecular Weight
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-
Formulation
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1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2.
Form
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Liquid
Gene ID
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3667
Uniprot ID
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P35568
Background
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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.
Research Area
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Synonyms
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Insulin receptor substrate 1; IRS-1; IRS1