Thermo Fisher Scientific IRS1 Polyclonal Antibody

Applications

Tested Dilution

Publications

Western Blot (WB)

1-4 µg/mL

-

Immunocytochemistry (ICC/IF)

2 µg/mL

-

Product Specifications

Species Reactivity

Human, Mouse

Host/Isotype

Rabbit / IgG

Class

Polyclonal

Type

Antibody

Immunogen

A 16 amino acid peptide from near the center of human IRS-1.

Conjugate

Unconjugated Unconjugated Unconjugated

Form

Liquid

Concentration

1 mg/mL

Purification

Antigen affinity chromatography

Storage buffer

PBS

Contains

0.02% sodium azide

Storage conditions

Maintain refrigerated at 2-8°C for up to 3 months. For long term storage store at -20°C

Shipping conditions

Ambient (domestic); Wet ice (international)

RRID

AB_11153030

Product Specific Information

A suggested positive control is PC-3 cell lysate.

PA5-20137 can be used with blocking peptide PEP-0344.

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.