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Invitrogen
Human IRS1 (aa 631-646) Synthetic Peptide
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Product Details
PEP-185
Product Specifications
Species Reactivity
Human
Class
Synthetic
Type
Peptide
Conjugate
Unconjugated
Unconjugated
Unconjugated
Form
Lyophilized
Concentration
0.5 mg/mL
Amount
50 µg
Purification
purified
Contains
no preservative
Storage conditions
-20°C, Avoid Freeze/Thaw Cycles
Shipping conditions
Wet ice
Product Specific Information
PEP-185 is a 16 amino acid synthetic peptide corresponding to amino acid residues 631-646 from human IRS-1. The sequence of this peptide is (amino to carboxy terminus): D Y M P M (pS) P K S V S A P Q Q I (NH2).
This peptide may be used for neutralization and control experiments with the polyclonal antibody that reacts with this product, catalog # PA1-1055. Using a solution of peptide of equal volume and concentration to the corresponding antibody will yield a large molar excess of peptide (~70-fold) for competitive inhibition of antibody-protein binding reactions.
Reconstitute with 0.1 mL of distilled water.
Target Information
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.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
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