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Recombinant Human SerpinA1/A1AT Protein (His Tag)
SKU: PKSH033030-50
Recombinant Human SerpinA1/A1AT Protein (His Tag)
| SKU # | PKSH033030 |
| Expression Host | HEK293 Cells |
Description
| Synonyms | A1A, A1AT, AAT, Alpha-1 Protease Inhibitor, Alpha-1-Antiproteinase, Alpha-1-Antitrypsin, MGC23330, MGC9222, PI, PI1, PRO2275, SERPINA1, Serpin A1, alpha1AT |
| Species | Human |
| Expression Host | HEK293 Cells |
| Sequence | Glu25-Lys418 |
| Accession | AAH11991.1 |
| Calculated Molecular Weight | 45.4 kDa |
| Observed Molecular Weight | 50-65 kDa |
| Tag | C-His |
| Bio-activity | Not validated for activity |
Properties
| Purity | > 95 % as determined by reducing SDS-PAGE. |
| Endotoxin | < 1.0 EU per μg of the protein as determined by the LAL method. |
| Storage | Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months. |
| Shipping | This product is provided as lyophilized powder which is shipped with ice packs. |
| Formulation | Lyophilized from a 0.2 μm filtered solution of 20mM Tris-HCl, 150mM NaCl, 2mM CaCl2, pH 7.5. Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
| Reconstitution | Please refer to the printed manual for detailed information. |
Background
Serpin A1 is a prototype member of the Serpin superfamily of the serine protease inhibitors. As one of the most abundant proteinase inhibitors in the circulation, it is synthesized in hepatocytes, and to a lesser extent, in macrophages as well as intestinal epithelial cell lines and secreted as the abundant proteinase inhibitor in the circulation whose targets include elastase, plasmin, thrombin, trypsin, chymotrypsin, and plasminogen activator. Point mutations in the native SerpinA1 variants result in Serpin A1 deficiency, and consequently lead to several clinical complications such as pulmonary emphysema, juvenile hepatitis, cirrhosis, and hepatocellular carcinoma. For example, the Z variants (Glu342 to Lys) forms intracellular inclusion bodies, is not secreted, and leads to a severe SerpinA1 deficiency. Accordingly, Serpin A1 deficiency in circulation is associated with emphysema or liver disease.