CTLA-4 重组蛋白-CTLA-4 Recombinant Protein代理/参数/厂家-重组蛋白-开云·官方站线上登录平台入口

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重组蛋白

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背景资料: 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.

保存建议: Lyophilized protein should be stored at -20˚C, though stable at room temperature for 3 weeks.
Reconstituted protein solution can be stored at 4-7˚C for 2-7 days.
Aliquots of reconstituted samples are stable at -20˚C for 3 months.

其他: ProSci Incorporated于1998年成立于美国加州圣地亚哥市,从事抗体等科研试剂的研发、生产和销售。产品涵盖了细胞凋亡、信号转导、免疫、肿瘤、细胞生物、神经生物、传染病等领域。ProSci拥有超过30000种单克隆抗体和多克隆抗体。ProSci的抗体大都经免疫亲和层析纯化,具有高纯度、高亲和力、特异性强等特点,所有的ProSci抗体都经过了严格的验证测试和质量控制,已保证高质量的产品。此外,ProSci还提供标记二抗,重组蛋白,细胞和组织裂解液,细胞涂片,组织切片,多肽等产品与抗体配套使用。