Thermo Fisher Scientific Human IRS1 (aa 602-612) Synthetic Peptide

Applications

Tested Dilution

Publications

Control (Ctrl)

Assay-dependent

-

Product Specifications

Class

Synthetic

Type

Peptide

Conjugate

Unconjugated Unconjugated Unconjugated

Form

Lyophilized

Concentration

0.35 mg/mL

Storage conditions

-20° C, Avoid Freeze/Thaw Cycles

Shipping conditions

Wet ice

Product Specific Information

PEP-192 is a 14 amino acid synthetic peptide corresponding to amino acid residues 602-615 from human IRS-1. The sequence of this peptide is (amino to carboxy terminus): L H T D D G Y M P M S P G V (NH2).

This peptide may be used for neutralization and control experiments with the polyclonal antibody that reacts with this product, catalog # PA1-1058. 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.