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7069
PathScan® Total Insulin Receptor β Sandwich ELISA Kit
ELISA Kits
ELISA Kit

PathScan® Total Insulin Receptor β Sandwich ELISA Kit #7069

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Figure 1: Treatment of CHO-IR/IRS-1 cells with insulin stimulates tyrosine phosphorylation of Insulin Receptor β which is detected by PathScan® Phospho-Insulin Receptor β (panTyr) Sandwich ELISA Kit #7082 (top, right). Similar levels of Insulin Receptor β protein from both nonphospho or phospho lysates are detected by PathScan® Total Insulin Receptor β Sandwich ELISA Kit #7069 (top, left). Absorbance at 450 nm is shown in the top figure while corresponding western blots using Phospho-IGF-I Receptor β (Tyr1135/1136)/Insulin Receptor β (Tyr1150/1151) (19H7) Rabbit mAb #3024 (right panel) or Insulin Receptor β (4B8) Rabbit mAb #3025 (left panel) are shown in the bottom figure. CHO-IR/IRS-1 cells stably overexpress the tranfected human insulin receptor and rat IRS-1.
Figure 2: The relationship between protein concentration of lysates from untreated and insulin-treated CHO-IR/IRS-1 cells and the absorbance at 450 nm is shown. After starvation, CHO-IR/IRS-1 cells (85% confluence) were treated with insulin (100 nM) for 2 min at 37°C and then lysed.

Product Description

PathScan® Total Insulin Receptor β Sandwich ELISA Kit is a solid phase sandwich enzyme-linked immunosorbent assay (ELISA) that detects transfected levels of insulin receptor β protein. An Insulin Receptor β Mouse mAb has been coated on the microwells. After incubation with cell lysates, insulin receptor β protein (phospho and nonphospho) is captured by the coated antibody. Following extensive washing, an Insulin Receptor β Rabbit mAb is added to detect captured Insulin Receptor β protein. Anti-rabbit IgG, HRP-linked antibody is then used to recognize the bound detection antibody. HRP substrate, TMB, is added to develop color. The magnitude of the absorbance for this developed color is proportional to the quantity of insulin receptor β protein.

*Antibodies in this kit are custom formulations specific to kit.

Storage

Kit should be stored at 4°C with the exception of Lysis Buffer, which is stored at –20°C (packaged separately).

Specificity / Sensitivity

PathScan® Total Insulin Receptor β Sandwich ELISA Kit #7069 detects transfected levels of human Insulin Receptor β protein, as shown in Figure 1. The kit sensitivity is shown in Figure 2. This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.

Background

Insulin receptor (INSR) is a membrane receptor tyrosine kinase. The receptor molecule consists of a disulfide linked heterodimer. The α subunit is a 135 kDa extracellular fragment, and the β subunit is a 95 kDa fragment containing an extracellular domain, a single transmembrane domain, and an intracellular tyrosine kinase domain (1). Insulin ligand binding to this receptor results in receptor autophosphorylation and tyrosine kinase activation. INSR catalyzes the tyrosine phosphorylation of molecules such as IRS, Gab1, Shc, and Cbl, which further activate the downstream MAPK, PI3K, and TC10 pathways. This eventually leads to increases in glucose uptake and metabolism as well as cell growth (2,3). INSR has peptide substrate specificity similar to other receptor tyrosine kinase members, preferring acidic residues at the -1 to -4 positions and large hydrophobic amino acids at positions +1 and +3 (4).

Pathways

Explore pathways related to this product.

Limited Uses

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Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

For Research Use Only. Not for Use in Diagnostic Procedures.
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To Purchase # 7069
Cat. # Size Qty. Price
7069C
1 Kit  (96 assays)

Important Ordering Details

Custom Ordering Details:

When ordering five or more kits, please contact us for processing time and pricing.

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