| 货号 | MAB1214-SP |
| 别名 | Activation B7-1 antigen; B7; BB1; CD28LG1; CD28LGB7-1 antigen); CD80 antigen; CD80 molecule; CD80; costimulatory factor CD80; costimulatory molecule variant IgV-CD80; CTLA-4 counter-receptor B7.1; T-lymphocyte activation antigen CD80 |
| 反应种属 | Rat |
| 应用 | Western Blot(1 µg/mL) |
| 目标/特异性 | Detects rat B7‑1/CD80 in direct ELISAs and Western blots. In direct ELISAs and Western blots, no cross-reactivity with recombinant human B7-1, recombinant mouse (rm) B7-1, rmB7-2, recombinant rat B7-2, rmB7-H1, rmB7-H2, rmB7-H3, or rmPD-L2 is observed. |
| 使用方法 | Western Blot: 1 µg/mL |
| 来源 | Reconstitute at 0.5 mg/mL in sterile PBS. |
| 产品组分 |
| 供应商 | R&D Systems |
| Entrez Gene IDs | 941 (Human); 12519 (Mouse); 25408 (Rat); 102140078 (Cynomolgus Monkey) |
| 纯化方式 | Protein A or G purified from hybridoma culture supernatant |
| 免疫原 | Mouse myeloma cell line NS0-derived recombinant rat B7‑1/CD80 Ile39-Gln248 Accession # AAB60503 |
| 生物活性 | Rat |
| 标记 | Unconjugated |
| 溶解方法 | Reconstitute at 0.5 mg/mL in sterile PBS. |
| 背景 | It is widely accepted that T cells require a signal induced by the engagement of the T cell receptor and a co-stimulatory signal(s) through distinct T cell surface molecules for optimal T cell expansion and activation. Members of the B7 superfamily of counter-receptors were identified by their ability to interact with co-stimulatory molecules found on the surface of T cells. Members of the B7 superfamily include B7-1 (CD80), B7-2 (CD86), B7-H1 (PD-L1), B7-H2 (B7RP-1), B7-H3 and PD-L2 (1). B7-1 is expressed on activated B cells, activated T cells, mature dendritic cells and macrophages (2). T cells express two different receptors capable of binding B7-1, CD28 and CTLA-4. CTLA-4 binds to B7-1 with a 20 - 100 fold higher affinity than CD28. Engagement of CD28 by B7-1 increases T cell proliferation and IL-2 production and enhances the immune response (3). In contrast, engagement of CTLA-4 is involved in the down-regulation of the immune response (4). Rat B7-1 is a 320 amino acid (aa) protein containing an extracellular domain, a transmembrane domain and a cytoplasmic domain. Rat and human B7-1 share 47% amino acid identity. |
| 运输条件 | Blue Ice |
| 存放说明 | 4℃ |
| 参考文献 |
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