CST, 3027L, IGF-I Receptor beta Antibody

Polyclonal Antibody for studying IGF1R beta. Validated for Western Blotting,Immunoprecipitation,Immunohistochemistry (Paraffin). Available in 2 sizes. Highly specific and rigorously validated in-house, IGF-I Receptor beta Antibody (CST #3027) is ready to ship. Product Usage Information Western Blotting: 1:1000 Immunoprecipitation: 1:100 Immunohistochemistry (Paraffin): 1:1200 - 1:4800 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at -20°C. Do not aliquot the antibody. Protocol Available protocols: Western Blotting, Immunoprecipitation, Immunohistochemistry (Paraffin) Specificity / Sensitivity IGF-I Receptor beta Antibody detects endogenous levels of IGF-IR beta. This antibody does not cross-react with insulin receptor. Species Reactivity: Human, Mouse, Rat, Monkey Source / Purification Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to the carboxy-terminal residues of human IGF-IR beta. Antibodies are purified by protein A and peptide affinity chromatography. Background Type I insulin-like growth factor receptor (IGF-IR) is a transmembrane receptor tyrosine kinase that is widely expressed in many cell lines and cell types within fetal and postnatal tissues (1-3). Receptor autophosphorylation follows binding of the IGF-I and IGF-II ligands. Three tyrosine residues within the kinase domain (Tyr1131, Tyr1135, and Tyr1136) are the earliest major autophosphorylation sites (4). Phosphorylation of these three tyrosine residues is necessary for kinase activation (5,6). Insulin receptors (IRs) share significant structural and functional similarity with IGF-I receptors, including the presence of an equivalent tyrosine cluster (Tyr1146/1150/1151) within the kinase domain activation loop. Tyrosine autophosphorylation of IRs is one of the earliest cellular responses to insulin stimulation (7). Autophosphorylation begins with phosphorylation at Tyr1146 and either Tyr1150 or Tyr1151, while full kinase activation requires triple tyrosine phosphorylation (8). Alternate Names CD221; IGF-I receptor; IGF1R; IGFIR; IGFR; insulin like growth factor 1 receptor; Insulin-like growth factor 1 receptor; Insulin-like growth factor 1 receptor alpha chain; Insulin-like growth factor 1 receptor beta chain; Insulin-like growth factor I receptor; JTK13; MGC142170; MGC142172; MGC18216; soluble IGF1R variant 1; soluble IGF1R variant 2 Specification REACTIVITY: H M R Mk SENSITIVITY: Endogenous MW (kDa): 95 SOURCE: Rabbit