- Catalog number
- PB9223
- Size / count
- 100 µg/Vial
- Dry ice
- No
- Hazardous
- No
- Discontinued
- No
- Background
- Insulin receptor substrate 1 (IRS-1) is a signalling adapter protein that in humans is encoded by the IRS-1 gene. It is mapped to 2q36.3. This gene exhibited no intrinsic enzyme activity, and it can serve as a docking protein involved in binding and activating other signal transduction molecules after being phosphorylated on tyrosine by insulin receptor kinase. IRS1 plays a key role in transmitting signals from the insulin and insulin-like growth factor-1 (IGF-1) receptors to intracellular pathways PI3K/Akt and Erk MAP kinase pathways. IRS1 also has important biological function for both metabolic and mitogenic (growth promoting) pathways. In addition to those, IRS1 is a key regulator of PI3K within malignant cells.
- Synonyms
- Insulin receptor substrate 1; IRS-1; IRS1
- Gene Name
- IRS1
- Gene ID
- 3667
- UniProt
- P35568
- Host
- Rabbit
- Reactivity
- Human, Mouse, Rat
- Cross Reactivity
- No cross-reactivity with other proteins
- Immunogen
- E.coli-derived human IRS1 recombinant protein (Position: S1041-Q1242) . Human IRS1 shares 78% and 80% amino acid (aa) sequences identity with mouse and rat IRS1, respectively.
- Clonality
- Polyclonal
- Tissue Specificity
- Lymphoid cells.
- Applications
- Flow Cytometry, IF, IHC, ICC, WB
- Field of Research
- Adapters, Atherosclerosis, Cancer, Cardiovascular, Cell Type Markers, Cytoplasmic, Diabetes, Diabetes-associated, Growth Factors/Hormones, Heart Disease, Metabolism, Neurology Process, Neuroscience, Obesity, Signal Transduction, Tags & Cell Markers, Tumor Associated
- Purification
- Immunogen affinity purified.
- Concentration
- Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.
- Form
- Lyophilized
- Reconstitution
- Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
- Function
- May mediate the control of various cellular processes by insulin. When phosphorylated by the insulin receptor binds specifically to various cellular proteins containing SH2 domains such as phosphatidylinositol 3-kinase p85 subunit or GRB2. Activates phosphatidylinositol 3-kinase when bound to the regulatory p85 subunit (By similarity) . .
- References & Citations
- 1. Dearth RK, Cui X, Kim HJ, Kuiatse I, Lawrence NA, Zhang X, Divisova J, Britton OL, Mohsin S, Allred DC, Hadsell DL, Lee AV (December 2006) .Mammary Tumorigenesis and Metastasis Caused by Overexpression of Insulin Receptor Substrate 1 (IRS-1) or IRS-2. Molecular and Cellular Biology 26 (24) : 9302–14. 2. Houghton, A. M., Rzymkiewicz, D. M., Ji, H., Gregory, A. D., Egea, E. E., Metz, H. E., Stolz, D. B., Land, S. R., Marconcini, L. A., Kliment, C. R., Jenkins, K. M., Beaulieu, K. A., Mouded, M., Frank, S. J., Wong, K. K., Shapiro, S. D. Neutrophil elastase-mediated degradation of IRS-1 accelerates lung tumor growth. Nature Med. 16: 219-223, 2010. 3. Sun, X. J., Rothenberg, P., Kahn, C. R., Backer, J. M., Araki, E., Wilden, P. A., Cahill, D. A., Goldstein, B. J., White, M. F. Structure of the insulin receptor substrate IRS-1 defines a unique signal transduction protein. Nature 352: 73-77, 1991.
- Storage Conditions
- Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.
- Calculated Molecular Weight
- 131591 MW
- Observed Molecular Weight
- 132 kDa
- Specificity
- No cross reactivity with other proteins.
- Applications Notes
- 6
- Gene Name Synonym
- Insulin receptor substrate 1
- Subcellular Location
- Nucleus.
- Sequence Similarities
- Contains 1 IRS-type PTB domain.
- Protein Name
- Insulin receptor substrate 1
- Isotype
- Rabbit IgG
- Contents
- Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg NaN3.