Human IGF-I R / CD221 Protein, Fc Tag

Human IGF-I R / CD221 Protein, Fc Tag

• Background: The Insulin-like Growth Factor 1 Receptor (IGF1) is also known as CD221, JTK13. and is a transmembrane receptor that is activated by IGF-1 and by the related growth factor IGF-2. It belongs to the large class of tyrosine kinase receptors. This receptor mediates the effects of IGF-1, which is a polypeptide protein hormone similar in molecular structure to insulin. IGF1R is make up of two alpha subunits and two beta subunits ,the Both the α and β subunits are synthesized from a single mRNA precursor. The precursor is then glycosylated, proteolytically cleaved, and crosslinked by cysteine bonds to form a functional transmembrane αβ chain.The α chains are located extracellularly while the β subunit spans the membrane and are responsible for intracellular signal transduction upon ligand stimulation. IGF1R have a binding site for ATP, which is used to provide the phosphates for autophosphorylation. There is a 60% homology between IGF1R and the insulin receptor. In response to ligand binding, the α chains induce the tyrosine autophosphorylation of the β chains. This event triggers a cascade of intracellular signaling that, while somewhat cell type specific, often promotes cell survival and cell proliferation.
• Description: Human IGF-I R, Fc Tag (IGR-H5253) is expressed from human 293 cells (HEK293). It contains AA Glu 31 - Asn 932 (Accession # P08069-1).
• Specifications: This protein carries a human IgG1 Fc tag at the C-terminus. The protein has a calculated MW of 129.3 kDa. The protein migrates as 70-75 kDa and 105-115 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
• Expression Region: Glu 31 - Asn 932
• Host: HEK 293
• Target: IGF-I R
• Conjugation: Unconjugated
• Tag: C-Fc
• Source: Human
• Stability: -20°C to -70°C for 12 months in lyophilized state; -70°C for 3 months under sterile conditions after reconstitution._x000D_For long term storage, the product should be stored at lyophilized state at -20°C or lower.
• Endotoxin: 1.0 EU per μg
• Purity: 95%
• Bioactivity: Immobilized Human IGF-I R, Fc Tag (Cat. No. IGR-H5253) at 5 μg/mL (100 μL/well) can bind Biotinylated Human IGF-I, Avitag,Fc Tag (Cat. No. IG1-H82F7) with a linear range of 0.01-0.625 μg/mL (QC tested).
• Format: Powder
• Buffer: PBS, pH7.4
• Additives: Trehalose
• Molecular Weight: 129.3 kDa
• Shipping Conditions: Room Temperature
• Storage Conditions: -20°C