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Pack Size | Price | Availability | Quantity |
---|---|---|---|
50 μg | $600 | 7-10 days | |
1 mg | $4,570 | 7-10 days |
Biological Information | Measured by its ability to bind biotinylated recombinant human B2M in functional ELISA. |
Description | CD8 alpha Protein, Mouse, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 20.3 kDa and the accession number is P01731. |
Species | Mouse |
Expression System | HEK293 Cells |
Tag | C-His |
Accession Number | P01731 |
Synonyms | Ly-35,CD8a molecule,BB154331,Ly-2,Ly-B,CD8 α,Lyt-2 |
Construction | The extracellular domain of Mouse CD8a (NP_001074579.1) (Met 1-Tyr 196) was expressed, with a C-terminal polyhistidine tag. |
Protein Purity | > 95 % as determined by SDS-PAGE |
Molecular Weight | 20.3 kDa (predicted) |
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, 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 | T-cell surface glycoprotein CD8 alpha chain, also known as CD8a, is a single-pass type I membrane protein. The CD8 glycoprotein is expressed by thymocytes, mature T cells and natural killer (NK) cells and has been implicated in the recognition of monomorphic determinants on major histocompatibility complex (MHC) Class I antigens, and in signal transduction during the course of T-cell activation. Both human and rodent CD8 antigens are comprised of two distinct polypeptide chains, alpha and beta. The Ig domains of CD8 alpha are involved in controlling the ability of CD8 to be expressed. Mutation of B- and F-strand cysteine residues in CD8 alpha reduced the ability of the protein to fold properly and, therefore, to be expressed. Defects in CD8A are a cause of familial CD8 deficiency. Familial CD8 deficiency is a novel autosomal recessive immunologic defect characterized by absence of CD8+ cells, leading to recurrent bacterial infections. |
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