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B7-H3, a member of the B7 family of immunomodulatory molecules, is overexpressed in a wide range of solid cancers.B7-H3 binds to activated T cells via an as yet unidentified receptor. In assays using sub-optimal amount so anti-CD3 stimulation, 2Ig‑B7‑H3 enhances T cell proliferation, T cell interferon-gamma (IFN-gamma) production, and cytotoxic T cells induction. B7-H3 Protein, Human, Recombinant (aa 29-245, His) is expressed in HEK293 mammalian cells with C-His tag. The predicted molecular weight is 24.7 kDa and the accession number is Q5ZPR3-2.

| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 5 μg | $46 | 7-10 days | |
| 10 μg | $72 | 7-10 days | |
| 20 μg | $115 | 7-10 days | |
| 50 μg | $222 | 7-10 days | |
| 100 μg | $371 | 7-10 days | |
| 200 μg | $673 | 7-10 days | |
| 500 μg | $1,490 | 7-10 days |
| Biological Activity | Immobilized Human B7-H3, His Tag at 0.5μg/ml (100μl/Well) on the plate. Dose response curve for Anti-B7-H3 Antibody, hFc Tag with the EC50 of 29.4ng/ml determined by ELISA. |
| Description | B7-H3, a member of the B7 family of immunomodulatory molecules, is overexpressed in a wide range of solid cancers.B7-H3 binds to activated T cells via an as yet unidentified receptor. In assays using sub-optimal amount so anti-CD3 stimulation, 2Ig‑B7‑H3 enhances T cell proliferation, T cell interferon-gamma (IFN-gamma) production, and cytotoxic T cells induction. B7-H3 Protein, Human, Recombinant (aa 29-245, His) is expressed in HEK293 mammalian cells with C-His tag. The predicted molecular weight is 24.7 kDa and the accession number is Q5ZPR3-2. |
| Species | Human |
| Expression System | HEK293 Cells |
| Tag | C-His |
| Accession Number | Q5ZPR3-2 |
| Synonyms | PSEC0249,PRO352,CD276,B7-H3,B7H3,B7 homolog 3, UNQ309 |
| Construction | Leu29-Pro245 |
| Protein Purity | > 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC |
| Molecular Weight | 24.7 kDa (predicted). Due to glycosylation, the protein migrates to 40-50 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 | B7-H3, a member of the B7 family of immunomodulatory molecules, is overexpressed in a wide range of solid cancers.B7-H3 binds to activated T cells via an as yet unidentified receptor. In assays using sub-optimal amount so anti-CD3 stimulation, 2Ig‑B7‑H3 enhances T cell proliferation, T cell interferon-gamma (IFN-gamma) production, and cytotoxic T cells induction. |

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