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Recombinant Human CTLA-4 (C-6His)
Catalog# BDAF0032
Product information
| 产品货号 | BDAF0032 |
| 别名 | Cytotoxic T-lymphocyte protein 4; Cytotoxic T-lymphocyte-associated antigen 4; CTLA-4; CD152; CTLA4 |
| 产品名称 | Recombinant Human CTLA-4 (C-6His) |
| 类别 | 重组蛋白 |
| 推荐应用 | Dependent by end user |
| 存储缓冲液 | Supplied as a 0.2 μm filtered solution of PBS, pH 7.4. |
| Human Swissprot No. | P16410 |
| 参考分子量 | 20-25kDa, reducing conditions |
| 预测分子量 | 14.3kDa |
| 运输及保存条件 | Store at ≤-70°C, stable for 6 months after receipt. Store at ≤-70°C, stable for 3 months under sterile conditions after opening. Please minimize freeze-thaw cycles. |
| 表达系统 | human cells |
| 内毒素 | Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test. |
| 宿主 | human cells |
| 背景介绍 | Cytotoxic Tlymphocyte 4(CTLA-4,CD152), is a type I transmembrane T cell inhibitory molecule that is a member of the Ig superfamily. Human or mouse CTLA4 cDNA encodes 223 amino acids (aa) including a 35 aa signal sequence, a 126 aa extracellular domain (ECD) with one Ig-like V-type domain, a 21 aa transmembrane (TM) sequence, and a 41 aa cytoplasmic sequence.It is widely expressed with highest levels in lymphoid tissues. CD28 and CTLA-4, together with their ligands, B7-1 and B7-2, constitute one of the dominant costimulatory pathways that regulate T and B cell responses. CD28 and CTLA-4 are structurally homologous molecules that are members of the immunoglobulin (Ig) gene superfamily. CTLA4 transmits an inhibitory signal to T cells, whereas CD28 transmits a stimulatory signal. Intracellular CTLA4 is also found in regulatory T Cells and may play an important role in their functions. Tcell activation through the Tcell receptor and CD28 leads to increased expression of CTLA4. |