Description
Product Name: | Recombinant Human CD80 Protein (Fc Tag) |
SKU: | RPES8318 |
Size: | 20μg |
Tag: | C-Fc |
Reactivity: | Human |
Expression Host: | Mammalian |
Accession: | P33681-1 |
Sequence: | Val35-Asn242 |
Calculated Molecular Weight: | 47.7 kDa |
Observed Molecular Weight: | 70-90 kDa |
Synonyms: | T-lymphocyte activation antigen CD80, Cd80, Activation B7-1 antigen, B7, |
Endotoxin: | < 1.0 EU/mg of the protein as determined by the LAL method |
Purity: | > 90% as determined by reducing SDS-PAGE. |
The B-lymphocyte activation antigen B7-1 (referred to as B7), also known as CD80, is a member of cell surface immunoglobulin superfamily and is expressed on the surface of antigen-presenting cells including activated B cells, macrophages and dendritic cells. As costimulatory ligands, B7-1 which exists predominantly as dimer and the related protein B7-2, interact with the costimulatory receptors CD28 and cytotoxic T lymphocyte-associated antigen 4 (CTLA-4) expressed on T cells, and thus constitute one of the dominant pathways that regulate T cell activation and tolerance, cytokine production, and the generation of CTL. The B7/CD28/CTLA4 pathway has the ability to both positively and negatively regulate immune responses. CD80 is thus regarded as promising therapeutic targets for autoimmune diseases and various carcinomas.
Bio-activity: | Not validated for activity |
Formulation: | Lyophilized from a 0.2 μm filtered solution in PBS with 5% Trehalose and 5% Mannitol. |
Reconstitution: | It is recommended that sterile water be added to the vial to prepare a stock solution of 0.5 mg/mL. Concentration is measured by UV-Vis. |
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. |