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Recombinant human IGF-1R /CD221 Protein, 100µg  

Recombinant human IGF-1R /CD221 Protein, 100µg

Recombinant Human IGF1R /CD221 Protein (rhIGF1R) Glu31-Asn 932 was produced in human 293 cells (HEK293)

Recombinant Human Protein, IGF-1R, IGF1R, CD221, IGFIR, IGFR, JTK13, MGC142170, MGC142172, MGC18216, Insulin-like Growth Factor 1 (IGF-1) Receptor

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420,00 €

The Insulin-like Growth Factor 1 Receptor (IGF1R) 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.[1] 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.[2-3]

Recombinant Human IGF1R /CD221 Protein (rhIGF1R) , His Tag (IGR-H5229) is expressed from human 293 cells (HEK293). It contains AA Glu 31 - Asn 932 (Accession # P08069-1).
Predicted N-terminus: Glu 31 & Asp 741

Molecular Characterization
This protein carries a polyhistidine tag at the C-terminus. This protein contains a furin convertase cleavage site, 737-RKRR-740, and will be partially processed into N (α chain) and C-terminal fragment (partial β chain) with calculated MW of 81.0 kDa and 23.8 kDa respectively. The protein migrates as 45-50 kDa (partial β chain), 100-116 kDa (α chain) and 140-160 kDa (α chain & partial β chain) under reducing (R) condition (SDS-PAGE) due to glycosylation.

Less than 1.0 EU per μg by the LAL method.

>90% as determined by SDS-PAGE.

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.

See Certificate of Analysis for details of reconstitution instruction and specific concentration.

For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
-20°C to -70°C for 12 months in lyophilized state;
-70°C for 3 months under sterile conditions after reconstitution.

Please refer to product data sheet.


(1) Reference values for IGF-I serum concentration in an adult population: use of the VARIETE cohort for two new immunoassays
Sabbah, Wolf, Piedvache et al
Endocr Connect (2021)
(2) Exploring the relationship between polymorphisms of leptin and IGF-1 genes with milk yield in indicine and taurine crossbred cows
Dar, Singh, Thakur et al
Trop Anim Health Prod (2021) 53 (4), 413
(3) Dietary Acid Load and Its Interaction with IGF1 (rs35767 and rs7136446) and IL6 (rs1800796) Polymorphisms on Metabolic Traits among Postmenopausal Women
Lim, Chan, Ramachandran et al
Nutrients (2021) 13 (7)
Showing 1-3 of 3550 papers.
Please refer to product data sheet.