Product Description
IRS-1 (phospho-S312) polyclonal antibody is available at gentaur for next week delivery
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.
Applications: WB
Purification&Purity: The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).
Storage&Stability: Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.
Specificity: p-IRS-1 (S312) polyclonal antibody detects endogenous levels of IRS-1 protein only when phosphorylated at Ser312.
W4BiowMW: ~ 132, 180 kDa
Reactivity: Human
Note: For research use only, not for use in diagnostic procedure.
Immunogen:
Synthetic phosphopeptide derived from human IRS-1 around the phosphorylation site of Serine 312.Alternative Name:
Insulin receptor substrate 1; IRS-1; IRS1Western blot analysis: Western blot (WB) analysis of p-IRS-1 (S312) pAb at 1:500 dilution Lane1:PC3 whole cell lysate(40ug) Lane2:SGC7901 whole cell lysate(40ug) Lane3:MCF-71 whole cell lysate(40ug)
Immunohistochemistry:
Immunofluorescence analysis:
Host: Rabbit
Swiss-Prot: P35568
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