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Chimerigen
CD80 (human):Fc (mouse) (rec.)
430
CHF
CHF 430.00
In stock
CHI-HF-211CD80-C100100 µgCHF 430.00
| Product Details | |
|---|---|
| Synonyms | B7-1 |
| Product Type | Protein |
| Properties | |
| Source/Host | CHO cells |
| Sequence |
The extracellular domain of human CD80 (aa 35-242) is fused to the N-terminus of the Fc region of mouse IgG2a. |
| Crossreactivity | Human |
| Biological Activity |
Measured by its ability to induce IL-2 secretion by Jurkat human acute T cell leukemia cells. |
| Purity | ≥95% (SDS-PAGE) |
| Endotoxin Content | <0.001EU/μg protein (LAL test; Lonza). |
| Reconstitution | Reconstitute with 100 µl sterile water. Add 1X PBS to the desired protein concentration. |
| Formulation | Lyophilized from 0.2μm-filtered solution in PBS. |
| Protein Negative Control | |
| Other Product Data |
NCBI reference NP_005182.1: CD80 (human) |
| Declaration | Manufactured by Chimerigen. |
| Shipping and Handling | |
| Shipping | BLUE ICE |
| Short Term Storage | +4°C |
| Long Term Storage | -20°C |
| Handling Advice |
Avoid freeze/thaw cycles. Centrifuge lyophilized vial before opening and reconstitution. |
| Use/Stability |
Stable for at least 1 year after receipt when stored at -20°C. Working aliquots are stable for up to 3 months when stored at -20°C. |
| Documents | |
| MSDS | Inquire |
| Product Specification Sheet | |
| Datasheet |
 Download PDF |
Description
CD80 (B7-1) and CD86 (B7-2) together with their receptors CD28 and CTLA-4 constitute one of the dominant costimulatory pathways that regulate T cell and B cell responses. Although both CTLA-4 and CD28 can bind to the same ligands, CTLA-4 binds to B7-1 and B7-2 with a 20-100 fold higher affinity than CD28 and is involved in the down-regulation of the immune response. B7-1 is expressed on activated B cells, activated T cells and macrophages. B7-2 is constitutively expressed on interdigitating dendritic cells, Langerhans cells, peripheral blood dendritic cells, memory B cells, and germinal center B cells. Additionally, B7-2 is expressed at low levels on monocytes and can be up-regulated through interferon-γ. B7-1 and B7-2 are both members of the immunoglobulin superfamily. It has been observed that both human and mouse B7-1 and B7-2 can bind to either human or mouse CD28 and CTLA-4, suggesting that there are conserved amino acids which form the B7-1/B7-2/CD28/CTLA-4 critical binding sites.
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