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HER2/ERBB2 Domain 4 Protein, Human, Recombinant (His & Avi) is expressed in HEK293 mammalian cells with C-His-Avi tag. The predicted molecular weight is 18.5 kDa and the accession number is P04626-1.
Pack Size | Price | Availability | Quantity |
---|---|---|---|
100 μg | $465 | 7-10 days | |
500 μg | $1,850 | 7-10 days | |
1 mg | $3,100 | 7-10 days |
Biological Activity | Immobilized Human Her2 Domain 4, His Tag at 1μg/ml (100μl/well) on the plate. Dose response curve for Anti-Her2 Antibody, hFc Tag with the EC50 of 13.1ng/ml determined by ELISA. |
Description | HER2/ERBB2 Domain 4 Protein, Human, Recombinant (His & Avi) is expressed in HEK293 mammalian cells with C-His-Avi tag. The predicted molecular weight is 18.5 kDa and the accession number is P04626-1. |
Species | Human |
Expression System | HEK293 Cells |
Tag | C-His-Avi |
Accession Number | P04626-1 |
Synonyms | TKR1,NGL,NEU,MLN19,MLN 19,HERVW,HERV7Q,herstatin,HER-2,HER2,ERVWE1,ErbB2,ENVW,ENV,EGFR2,CD340 |
Construction | Pro489-Cys630 |
Protein Purity | > 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC |
Molecular Weight | 18.5 kDa (predicted). Due to glycosylation, the protein migrates to 28-40 kDa based on Tris-Bis PAGE result. |
Endotoxin | < 1 EU/μg by the LAL method. |
Formulation | Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS (pH 7.4). Typically, 8% trehalose is incorporated as a protective agent before lyophilization. |
Reconstitution | 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. |
Stability & Storage | It is recommended to store recombinant proteins at -20°C to -80°C for future use. 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. |
Shipping | In general, Lyophilized powders are shipping with blue ice. |
Research Background | ErbB2, also called Neu and Her2 (human epidermal growth factor receptor 2), is a type I membrane glycoprotein that is a member of the ErbB family of tyrosine kinase receptors. ErbB family members serve as receptors for the epidermal growth factor (EGF) family of growth factors.Upon ERBB2 activation, the MEMO1-RHOA-DIAPH1 signaling pathway elicits the phosphorylation and thus the inhibition of GSK3B at cell membrane. This prevents the phosphorylation of APC and CLASP2, allowing its association with the cell membrane. |
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