HER3/ERBB3 Protein, Human, Recombinant (aa 20-643, His & Avi), Biotinylated is expressed in HEK293 mammalian cells with C-6xHis-Avi tag. The predicted molecular weight is 90-120 KDa and the accession number is P21860.

Human

HEK293 Cells

Tyrosine kinase-type cell surface receptor HER3,Proto-oncogene-like protein c-ErbB-3,HER3,ERBB3

Ser20-Thr643

Ser20-Thr643

Greater than 95% as determined by reducing SDS-PAGE. (QC verified)

Reconstitute the lyophilized protein in distilled water. The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing.

Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.

Receptor tyrosine-protein kinase erbB-3 is an enzyme that in humans is encoded by the ERBB3 gene. This gene encodes a member of the epidermal growth factor receptor (EGFR) family of receptor tyrosine kinases. ERBB3 belongs to the protein kinase superfamily,tyr protein kinase family and EGF receptor subfamily.It contains 1 protein kinase domain and it is expressed in Epithelial tissues and brain. This membrane-bound protein has a neuregulin binding domain but not an active kinase domain. It therefore can bind this ligand but not convey the signal into the cell through protein phosphorylation. However, it does form heterodimers with other EGF receptor family members which do have kinase activity.