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Pack Size | Price | Availability | Quantity |
---|---|---|---|
100 μg | $700 | 7-10 days |
Biological Information | Testing in progress |
Description | CD20 Protein, Human, Recombinant (TrxA) is expressed in E. coli expression system with TrxA tag. The predicted molecular weight is 23.9 kDa and the accession number is A0A024R507. |
Species | Human |
Expression System | E. coli |
Tag | N-TrxA |
Accession Number | A0A024R507 |
Synonyms | MS4A2,CD20,CVID5,S7,Bp35,membrane-spanning 4-domains, subfamily A, member 1,MS4A1,B1,LEU-16 |
Construction | The Human MS4A1 (NP_068769.2) (Ile141-Ser188) was expressed with a TrxA tag at the N-terminus. |
Protein Purity | > 80 % as determined by SDS-PAGE. |
Molecular Weight | 23.9 kDa (predicted) |
Endotoxin | Please contact us for more information. |
Formulation | Lyophilized from a solution filtered through a 0.22 μm filter, containing 50 mM Tris, 1 mM EDTA, 5% Glycerol, 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 | CD20 (membrane-spanning 4-domains, subfamily A, member 1), also known as MS4A1, is a member of the membrane-spanning 4A gene family. Members of this nascent protein family are characterized by common structural features and similar intron/exon splice boundaries and display unique expression patterns among hematopoietic cells and nonlymphoid tissues. CD20 / MS4A1 is expressed in all stages of B cell development except the first and last. CD20 / MS4A1 is present from pre-pre B cells through memory cells, but not on either pro-B cells or plasma cells. It is a B-lymphocyte surface molecule that plays a role in the development and differentiation of B-cells into plasma cells. CD20 / MS4A1may be involved in the regulation of B-cell activation and proliferation. Defects in CD20 / MS4A1 are the cause of immunodeficiency common variable type 5(CVID5). CVID5 is a primary immunodeficiency characterized by antibody deficiency, hypogammaglobulinemia, recurrent bacterial infections, and an inability to mount an antibody response to antigen. The defect results from a failure of B-cell differentiation and impaired secretion of immunoglobulins; the numbers of circulating B-cells are usually in the normal range but can be very low.Cancer ImmunotherapyImmune CheckpointImmunotherapyTargeted Therapy |
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