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Cystatin F/CST7 Protein, Human, Recombinant is expressed in HEK293 mammalian cells. The predicted molecular weight is 15.2 kDa and the accession number is O76096.

| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 5 μg | $129 | 7-10 days | |
| 10 μg | $215 | 7-10 days | |
| 20 μg | $413 | 7-10 days |
| Biological Activity | 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 | Cystatin F/CST7 Protein, Human, Recombinant is expressed in HEK293 mammalian cells. The predicted molecular weight is 15.2 kDa and the accession number is O76096. |
| Species | Human |
| Expression System | HEK293 Cells |
| Tag | Tag Free |
| Accession Number | O76096 |
| Synonyms | cystatin F (leukocystatin),CMAP |
| Construction | The mature form of the human Cystatin F (NP_003641.3) (Met 1-His 145) with five amino acids (DDDDK) at the C-terminus was expressed and purified. Predicted N terminal: Gly 20 |
| Protein Purity | > 95 % as determined by SDS-PAGE |
| Molecular Weight | 15.2 kDa (predicted); 25 kDa (reducing condition, due to glycosylation) |
| 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 50 mM Tris, 100 mM NaCl, pH 8.0.Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization. |
| Reconstitution | A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information. |
| 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 | The cystatin superfamily members are important natural cysteine protease inhibitors present in a wide variety of organisms and are divided into three classes. Cystatin F, also known as leukocystatin and CMAP (Cystatin-like Metastasis-Associated Protein), is a type 2 cystatin and its expression is limited to hematopoietic cells, with the highest expression levels being observed in monocytes, dendritic cells, and certain types of T-cells. Furthermore, cystatin F mRNA becomes up-regulated during dendritic cell maturation, and thus suggests a specific role of cystatin F in immune regulation. Cystatin F is produced as a dimer, an inactive cathepsin inhibitor which is activated by chemical reduction. In addition, Cystatin F and its homologues have been observed expressing in various human cancer cell lines established from malignant tumors, and thus indicates a new diagnosis and prevention approach of certain human carcinomas metastasis. |

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