Human B7-1/CD80 DTSet enzyme-linked immunoassay kit
| Specification | 96*5 Test；96T*15 Test |
|---|---|
| Standard Curve Range | 15.63pg/ml-1000pg/ml |
| Standard Curve Gradient | 7 Points/3 Folds |
| Number of Incubations | 2 |
| Sample Volume | 50 μl |
| Type | Not Ready-to-Use |
| Test Duration | 120min |
| pg/ml | O.D. | Average | Corrected | |
|---|---|---|---|---|
| 0.00 | 0.0171 | 0.0213 | 0.0192 | |
| 15.63 | 0.2682 | 0.2970 | 0.2826 | 0.2634 |
| 31.25 | 0.5019 | 0.5559 | 0.5289 | 0.5097 |
| 62.50 | 1.0160 | 1.0790 | 1.0475 | 1.0283 |
| 125.00 | 1.8790 | 1.9880 | 1.9335 | 1.9143 |
| 250.00 | 3.0020 | 3.1540 | 3.0780 | 3.0588 |
| 500.00 | 4.1757 | 4.1825 | 4.1791 | 4.1599 |
| 1000.00 | 4.4758 | 4.7045 | 4.5902 | 4.5710 |
Product Features
- Optimized capture and detection antibody pairings with recommended concentrations save lengthy development time
- Development protocols are provided to guide further assay optimization
- Assay can be customized to your specific needs
- Economical alternative to complete kits
Kit Content
- Capture Antibody
- Detection Antibody
- Recombinant Standard
- Streptavidin conjugated to horseradish-peroxidase (Streptavidin-HRP)
Other Reagents Required
DTSet Ancillary Reagent Kit (5 plates): containing 96 well microplates, plate sealers, substrate solution, stop solution, plate coating buffer (PBS), wash buffer, and assay buffer.
- 96 well microplates: YOUKE Life, Catalog # DSEP01. Plate Sealers: YOUKE Life, Catalog # DSSF01.
- Coating Buffer: 137 mM NaCl, 2.7 mM KCl, 8.1 mM Na2HPO4, 1.5 mM KH2PO4, pH 7.2-7.4, 0.2 μm fi ltered . YOUKE Life, Catalog # DSCB01.
- Blocking Buffer: YOUKE Life, Catalog # DSBB01.
- Wash Buffer: 0.05% Tween 20 in PBS, pH 7.2-7.4. YOUKE Life, Catalog # DSWB01.
- Assay Buffer: 0.5%BSA，0.05%Tween20，PBS Solution.YOUKE Life, Catalog # DSAB01
- Substrate Solution: Tetramethylbenzidine. YOUKE Life, Catalog # DSTS01.
- Stop Solution: 0.5mol/ml H2SO4. YOUKE Life, Catalog # DSSS01.
Product Data Sheet
Background: B7-1/CD80
B7-1 and B7-2, together with their receptors CD28 and CTLA-4, constitute one of the dominant co-stimulatory pathways that regulate T- 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 gamma. B7-1 and B7-2 are both members of the Immunoglobulin superfamily. Human B7-1 is a 288 amino acid (aa) protein containing a 34 aa signal peptide, a 208 aa extracellular domain, a 21 aa transmembrane domain, and a 25 aa cytoplasmic domain. Human B7-1 and B7-2 share 26% aa sequenceidentity. Human and mouse B7-1 share 44% aa sequenceidentity. However, 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.
