| Code | CSB-MP007763HU |
| Abbreviation | Recombinant Human ERBB2 protein, partial (Active) |
| MSDS | |
| Size | $9.9 |
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ERBB2 (HER2) is a critical oncogenic receptor tyrosine kinase whose extracellular domain serves as the primary target for therapeutic antibodies in HER2-positive cancers, making conformationally accurate recombinant protein essential for meaningful binding studies. This construct spans the extracellular region (aa 23–652) with a C-terminal 6xHis tag, and its mammalian cell expression preserves the native glycosylation and disulfide bonding required for proper domain folding and epitope presentation. Functional ELISA confirms that immobilized HER2 at 2 μg/ml binds Trastuzumab with an EC50 of 2.179–2.825 ng/ml, directly supporting applications in therapeutic antibody epitope mapping, competitive blocking antibody screening, and affinity characterization by SPR or BLI. Purity exceeding 95% by SDS-PAGE combined with endotoxin levels below 1.0 EU/μg satisfies the quality thresholds commonly required for drug discovery assays, including small-molecule inhibitor screening and use as a positive control in receptor-ligand interaction studies.
Applications : Antigen, Binding assay/Protein-protein interaction
Review: ERBB2 is involved in the regulation of many important functions, including cell growth, differentiation and apoptosis. It is an important participant in human malignant tumors and one of the hot targets for current research on tumors. I used CSB-MP007763HU product for an ELISA experiment, EC50 was 1.212-3.812 ng/ml, and the protein had complete biological activity. Subsequent screening of antibodies resulted in more high-quality antibodies, indicating good protein performance! The subsequent experiment was very smooth!
By Anonymous
Applications : Antigen, Binding assay/Protein-protein interaction
Review: After receiving the product, we conducted SDS detection and functional ELISA verification, and the results showed that the protein purity was higher than the standard, and there were no impurity bands. The binding activity with antibodies was good, and the EC50 was 1.212-3.812 ng/ml. After immunizing the mouse, the serum titer was high, and the ELISA testing effect of the coated protein was good. In-stock products with fast delivery, good packaging, stable protein performance, and good repeatability! We will continue to purchase in large quantities!
By Anonymous