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Serpin B9 Protein, Human, Recombinant (His)
(Synonyms: serpin peptidase inhibitor, clade B (ovalbumin), member 9, Serpin B9, PI-9, PI9, CAP-3, CAP3) Copy Product InfoSynonyms: serpin peptidase inhibitor, clade B (ovalbumin), member 9, Serpin B9, PI-9, PI9, CAP-3, CAP3
Catalog No. TMPY-02210 Copy Product Info
SerpinB9, also known as Cytoplasmic antiproteinase 3, CAP-3, Peptidase inhibitor 9, SERPINB9 and PI-9, is a cytoplasm protein that belongs to the serpin family and Ov-serpin subfamily. Serpin-B9 ( CAP-3 / PI-9 ) is the only known human intracellular inhibitor of granzyme B (GrB), the effector molecule in immunity against cytomegalovirus (CMV) and in renal allograft rejection. Serpin-B9 and SPI-6 expression in immune-privileged cells, APCs, and CTLs protect these cells against the actions of granzyme B, and when expressed in tumor cells or virally infected hepatocytes, confers resistance to killing by CTL and NK cells. Expression of increasing levels of Serpin-B9 ( CAP-3 / PI-9 ) in target cells may progressively inhibit immune surveillance by blocking NK and CTL-induced cytotoxicity through the perforin / granzyme pathway and then through the Fas / FasL pathway. Serpin-B9 ( CAP-3 / PI-9 ) is selectively up-regulated in hepatocytes in response to infiltration of the liver by NK cells that express perforin and enzymatically active granzyme B. Upregulated expression of Serpin-B9 ( CAP-3 / PI-9 ) in NSCLC cells may serve to protect them from apoptosis induced by GrB.
| Pack Size | Price | USA Stock | Global Stock | Quantity |
|---|---|---|---|---|
| 5 μg | $68 | 7-10 days | 7-10 days | |
| 10 μg | $108 | 7-10 days | 7-10 days | |
| 20 μg | $178 | 7-10 days | 7-10 days | |
| 50 μg | $359 | 7-10 days | 7-10 days | |
| 100 μg | $696 | 7-10 days | 7-10 days |
For In stock only · Estimated delivery: USA Stock (1-2 days) Global Stock (5-7 days)
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For research use only—not for human use. No sales to individuals. Use as intended only.
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Purity:Greater than 95% as determined by reducing SDS-PAGE.
Appearance:Lyophilized powder
Color:White
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Product Introduction
Bioactivity
Chemical Properties
Storage & Solubility Information
| Bioactivity | Activity testing is in progress. It is theoretically active, but we cannot guarantee it. If you require protein activity, we recommend choosing the eukaryotic expression version first. |
| Description | SerpinB9, also known as Cytoplasmic antiproteinase 3, CAP-3, Peptidase inhibitor 9, SERPINB9 and PI-9, is a cytoplasm protein that belongs to the serpin family and Ov-serpin subfamily. Serpin-B9 ( CAP-3 / PI-9 ) is the only known human intracellular inhibitor of granzyme B (GrB), the effector molecule in immunity against cytomegalovirus (CMV) and in renal allograft rejection. Serpin-B9 and SPI-6 expression in immune-privileged cells, APCs, and CTLs protect these cells against the actions of granzyme B, and when expressed in tumor cells or virally infected hepatocytes, confers resistance to killing by CTL and NK cells. Expression of increasing levels of Serpin-B9 ( CAP-3 / PI-9 ) in target cells may progressively inhibit immune surveillance by blocking NK and CTL-induced cytotoxicity through the perforin / granzyme pathway and then through the Fas / FasL pathway. Serpin-B9 ( CAP-3 / PI-9 ) is selectively up-regulated in hepatocytes in response to infiltration of the liver by NK cells that express perforin and enzymatically active granzyme B. Upregulated expression of Serpin-B9 ( CAP-3 / PI-9 ) in NSCLC cells may serve to protect them from apoptosis induced by GrB. |
| Species | Human |
| Expression System | HEK293 Cells |
| Tag | C-6xHis |
| Accession Number | P50453 |
| Construction | Met1-Pro376 |
| Protein Purity | > 95% as determined by SDS-PAGE |
| Endotoxin | < 1.0 EU/μg of the protein as determined by the LAL method. |
| Formulation | Lyophilized from a 0.2 μm filtered solution of 20mM PB, 150mM NaCl, pH 7.4. |
| 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 shipped with blue ice, while solutions are shipped with dry ice. |
| Synonyms | serpin peptidase inhibitor, clade B (ovalbumin), member 9, Serpin B9, PI-9, PI9, CAP-3, CAP3 |
| Research Background |
| Molecular Weight | 43.4 kDa (predicted); 35-40 kDa (reducing conditions) |
| Storage | Store at low temperature Lyophilized powder: -20~-80°C for 1 year | Solution: -80°C for 6 months |
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Tech Support
Please see Inhibitor Handling Instructions for more frequently ask questions. Topics include: how to prepare stock solutions, how to store products, and cautions on cell-based assays & animal experiments, etc
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Related Tags: Serpin B9 Protein, Human, Recombinant (His) chemical structure | Serpin B9 Protein, Human, Recombinant (His) molecular weight
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