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General description
Insulin Receptor substrate proteins are the effectors of both Insulin and IGF-initiated signaling. They share PH and PTB domains near their n-termini, and multiple Tyr phosphorylation motifs in their c-terminal regions. Proteins which bind to tyrosine-phosphorylated IRS-proteins include PI3 Kinase p85, GRB2, SHP2, Nck, Crk, and Fyn. IRS1 appears to be principally involved in IGF-signaling and cytoskeletal growth. IRS2 appears to be the critical mediator of Insulin signaling, as genetic ablation results in type II diabetes. IRS3 is expressed primarily in adipocytes and is an unusually potent activator of PI3 Kinase. IRS4 lacks the tyrosine residues which in the other IRS-proteins binds to SHP2.
Mr ~145-165kDa
Immunogen
Peptide corresponding to carboxy-terminal 14 amino acids (C-YASINFQKQPEDRQ) of rat liver IRS1
Application
Anti-IRS1 Antibody, clone AW58 detects level of IRS1 & has been published & validated for use in IP & WB.
Immunoblot Analysis: 1:1,000 to 1:4,000 dilutions of this lot detected IRS1 in RIPA lysates from 3T3/A31 mouse fibroblasts.
Immunoprecipitation: 5-10μl of this lot immunoprecipitated IRS1 from 500μg of 3T3/A31 RIPA lysate.
Research Category
Signaling
Research Sub Category
Insulin/Energy Signaling
Biochem/physiol Actions
IRS1
Physical form
Cultured supernantant in 0.05% sodium azide
Preparation Note
1 year at -20°C from date of shipment
Analysis Note
Control
Positive Antigen Control: Catalog #12-305, 3T3/A31 lysate. Add 2.5 μL of 2-mercapto-ethanol/100 μL of lysate and boil for 5 minutes to reduce the preparation. Load 20 μg of reduced lysate per lane for minigels.
routinely evaluated by immunoblot on in RIPA lysates from 3T3/A31 mouse fibroblasts
Other Notes
Replaces: 05-784
Legal Information
UPSTATE is a registered trademark of Merck KGaA, Darmstadt, Germany
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
| biological source | rabbit |
| Quality Segment | 100 |
| conjugate | unconjugated |
| antibody form | culture supernatant |
| antibody product type | primary antibodies |
| clone | AW58, monoclonal |
| species reactivity | human, rat, mouse |
| manufacturer/tradename | Upstate® |
| technique(s) | immunoprecipitation (IP): suitable,western blot: suitable |
| isotype | IgG |
| NCBI accession no. | NM_005544 |
| UniProt accession no. | P35568 |
| shipped in | dry ice |
| target post-translational modification | unmodified |
| Gene Information | human ... IRS1(3667) |
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