Human Total IGF-I R/IGF1R DuoSet IC ELISA
Human Total IGF-I R/IGF1R DuoSet IC ELISA Summary
* Provided that the recommended microplates, buffers, diluents, substrates and solutions are used, and the assay is run as summarized in the Assay Procedure provided.
- Optimized capture and detection antibody pairings with recommended concentrations save lengthy development time
- Development protocols are provided to guide further assay optimization
- Assay can be customized to your specific needs
- Available in 2, 5, and 15- (96-well) plate pack sizes
- Economical alternative to Western blot
- Capture Antibody
- Conjugated Detection Antibody
- Calibrated Immunoassay Standard or Control
Other Reagents Required
PBS: (Catalog # DY006), or 137 mM NaCl, 2.7 mM KCl, 8.1 mM Na2HPO4, 1.5 mM KH2O4, pH 7.2 - 7.4, 0.2 µm filtered
Wash Buffer: (Catalog # WA126), or equivalent
Substrate Solution: 1:1 mixture of Color Reagent A (H2O2) and Color Reagent B (Tetramethylbenzidine) (Catalog # DY999)
Stop Solution: 2 N H2SO4 (Catalog # DY994)
Microplates: From Costar EIA Plate (Costar Catalog # 2592) or R&D Systems (Catalog # DY990), or equivalent
Plate Sealers: ELISA Plate Sealers (Catalog # DY992), or equivalent
*For the Lysis Buffer, IC Diluent, and Blocking BUffer recommended for a specific DuoSet ELISA Development Kit, please see the product
Preparation and Storage
Background: IGF-I R/IGF1R
IGF-I receptor is a disulfide-linked heterotetrameric transmembrane protein consisting of two alpha and two beta subunits. Both the alpha and beta subunits are encoded within a single receptor precursor cDNA. The proreceptor polypeptide is proteolytically cleaved and disulfide-linked to yield the mature heterotetrameric receptor. The alpha subunit of IGF-I receptor is extracellular while the beta subunit has an extracellular domain, a transmembrane domain and a cytoplasmic tyrosine kinase domain. The IGF-I receptor is highly expressed in all cell types and tissues.
IGF-II R is a type I transmembrane glycoprotein that contains a 2,264 amino acid (aa) extracellular region, a 23 aa transmembrane segment segment and a 124 aa cytoplasmic tail. IGF-II R regulates many diverse biological functions that range from intracellular trafficking to the internalization of extracellular factors and modulation of cellular responses. It delivers newly synthesized M6P-tagged lysosomal enzymes from the trans-golgi network to endosomes, and facilitates the clearance of extracellular lysosomal and matrix degrading enzymes by internalization into clathrin-coated vesicles and delivery into endosomes. With respect to IGF-II biology, It would appear that IGF-II R is principally a regulator of local IGF-II levels, targeting IGF-II for destruction in lysosomes.
The heterotetrameric receptors for insulin (INS R) and IGF-I (IGF-I R) are receptor tyrosine kinases that consist of two ligandbinding alpha subunits and two beta subunits. Ligand binding induces autophosphorylation on multiple tyrosine residues of beta subunits. Phosphorylation of Tyr1162 and 1163 on INS R and Tyr1135 and 1136 on IGF-I R stimulates intrinsic kinase activity.
Citations for Human Total IGF-I R/IGF1R DuoSet IC ELISA
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
Citations: Showing 1 - 4
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Improvement of human keratinocyte migration by a redox active bioelectric dressing.
Authors: Banerjee J, Das Ghatak P, Roy S, Khanna S, Sequin E, Bellman K, Dickinson B, Suri P, Subramaniam V, Chang C, Sen C
PLoS ONE, 2014-03-03;9(3):e89239.
Sample Types: Cell Lysates
Activated phosphoinositide 3-kinase/AKT signaling confers resistance to trastuzumab but not lapatinib.
Authors: O'Brien NA, Browne BC, Chow L, Wang Y, Ginther C, Arboleda J, Duffy MJ, Crown J, O'Donovan N, Slamon DJ
Mol. Cancer Ther., 2010-05-25;9(6):1489-502.
Sample Types: Cell Lysates
Addiction to elevated insulin-like growth factor i receptor and initial modulation of the AKT pathway define the responsiveness of rhabdomyosarcoma to the targeting antibody.
Authors: Cao L, Yu Y, Darko I, Currier D, Mayeenuddin LH, Wan X, Khanna C, Helman LJ
Cancer Res., 2008-10-01;68(19):8039-48.
Sample Types: Cell Lysates
Insulin-like growth factor-I receptor blockade by a specific tyrosine kinase inhibitor for human gastrointestinal carcinomas.
Authors: Piao W, Wang Y, Adachi Y, Yamamoto H, Li R, Imsumran A, Li H, Maehata T, Ii M, Arimura Y, Lee CT, Shinomura Y, Carbone DP, Imai K
Mol. Cancer Ther., 2008-06-01;7(6):1483-93.
Sample Types: Tissue Homogenates
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