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CTLA-4 Protein, Human, Recombinant (His & Avi), Biotinylated
(Synonyms: IDDM12, ICOS, GSE, GRD4, CTLA4, CELIAC3, CD152, ALPS5) Copy Product InfoSynonyms: IDDM12, ICOS, GSE, GRD4, CTLA4, CELIAC3, CD152, ALPS5
Catalog No. TMPK-00112 Copy Product Info
CTLA-4 (cytotoxic T-lymphocyte-associated protein 4), also known as CD152, is a protein receptor that, functioning as an immune checkpoint, downregulates immune responses.CTLA4 is constitutively expressed in regulatory T cells but only upregulated in conventional T cells after activation – a phenomenon which is particularly notable in cancers. It acts as an "off" switch when bound to CD80 or CD86 on the surface of antigen-presenting cells.
| Pack Size | Price | USA Stock | Global Stock | Quantity |
|---|---|---|---|---|
| 5 μg | $56 | 7-10 days | 7-10 days | |
| 10 μg | $88 | 7-10 days | 7-10 days | |
| 20 μg | $143 | 7-10 days | 7-10 days | |
| 50 μg | $278 | 7-10 days | 7-10 days | |
| 100 μg | $465 | 7-10 days | 7-10 days | |
| 200 μg | $839 | 7-10 days | 7-10 days | |
| 500 μg | $1,850 | 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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Product Introduction
Bioactivity
Chemical Properties
Storage & Solubility Information
| Bioactivity | Immobilized Anti-CTLA-4 Antibody, hFc Tag at 1μg/ml (100μl/well) on the plate. Dose response curve for Biotinylated Human CTLA-4, His Tag with the EC50 of 45.7ng/ml determined by ELISA (QC Test). |
| Description | CTLA-4 (cytotoxic T-lymphocyte-associated protein 4), also known as CD152, is a protein receptor that, functioning as an immune checkpoint, downregulates immune responses.CTLA4 is constitutively expressed in regulatory T cells but only upregulated in conventional T cells after activation – a phenomenon which is particularly notable in cancers. It acts as an "off" switch when bound to CD80 or CD86 on the surface of antigen-presenting cells. |
| Species | Human |
| Expression System | HEK293 Cells |
| Tag | C-His-Avi |
| Accession Number | P16410 |
| Construction | Lys36-Asp161 |
| Protein Purity | > 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC |
| Endotoxin | < 1.0 EU/μg of the protein as determined 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 shipped with blue ice, while solutions are shipped with dry ice. |
| Synonyms | IDDM12, ICOS, GSE, GRD4, CTLA4, CELIAC3, CD152, ALPS5 |
| Research Background |
| Molecular Weight | 16.3 kDa (predicted). Due to glycosylation, the protein migrates to 25-30 kDa based on Tris-Bis PAGE result. |
| Storage | Lyophilized powder: -20~-80°C for 1 year | Solution: -80°C for 6 months |
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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: CTLA-4 Protein, Human, Recombinant (His & Avi), Biotinylated chemical structure | CTLA-4 Protein, Human, Recombinant (His & Avi), Biotinylated molecular weight
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