Insulin Receptor Protein, Human, Recombinant (long isoform, His Tag), Biotinylated: Product Information
> 95 % as determined by SDS-PAGE.
< 1.0 EU per μg protein as determined by the LAL method.
Testing in progress
A DNA sequence encoding the human INSR isoform long (NP_000199.2) extracellular domain (Met1-Lys956) was expressed, fused with a polyhistidine tag at the C-terminus. The purified protein was biotinylated in vitro.
Predicted N Terminal
His 28 & Ser 763
The recombinant human INSR isoform long consists of 940 amino acids and predicts a molecular mass of 107 kDa.
Lyophilized from sterile PBS, pH 7.4 Please contact us for any concerns or special requirements.
Please refer to the specific buffer information in the hard copy of CoA.
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Stability & Storage
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃ Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Insulin Receptor Protein, Human, Recombinant (long isoform, His Tag), Biotinylated: Alternative Names
CD220 Protein, Human; HHF5 Protein, Human; Insulin Receptor Protein, Human
Insulin Receptor Background Information
INSR (Insulin receptor), also known as CD22, is a transmembrane receptor that is activated by insulin. INSR belongs to theprotein kinase superfamily, and exists as a tetramer consisting of two alpha subunits and two beta subunits linked by disulfide bonds. The alpha and beta subunits are encoded by a single INSR gene, and the beta subunits pass through the cellular membrane. As the receptor for insulin with tyrosine-protein kinase activity, INSR associates with downstream mediators upon binding to insulin, including IRS1 (insulin receptor substrate 1) and phosphatidylinositol 3'-kinase (PI3K). IRS-1 binding and phosphorylation eventually leads to an increase in the high affinity glucose transporter (Glut4) molecules on the outer membrane of insulin-responsive tissues. INSR isoform long and isoform short are expressed in the peripheral nerve, kidney, liver, striated muscle, fibroblasts and skin, and is found as a hybrid receptor with IGF1R which also binds IGF1 in muscle, heart, kidney, adipose tissue, skeletal muscle, hepatoma, fibrobasts, spleen and placenta. Defects in Insulin Receptor/INSR are the cause of Rabson-Mendenhall syndrome (Mendenhall syndrome), insulin resistance (Ins resistance), leprechaunism (Donohue syndrome), and familial hyperinsulinemic hypoglycemia 5 (HHF5). It may also be associated with noninsulin-dependent diabetes mellitus (NIDDM).
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