重组人CTLA-4(CD152)

特别提示：包括重组人CTLA-4(CD152)在内，本公司的所有产品仅可用于科研实验，严禁用于临床医疗及其他非科研用途！

产品名称：重组人CTLA-4(CD152)
英文名称：Recombinant Human Cytotoxic T-lymphocyte Protein 4
产品货号：JN1648
产品规格：10μg|50μg|500μg|1mg

本品由我们的哺乳动物细胞表达系统制备而成，目的基因编码的Lys36-Asp161在C端带Flag标签。

CTLA-4/CD152质量控制：＞95%(还原性SDS-PAGE)

CTLA-4/CD152制剂：冻干品

CTLA-4/CD152保存：
冻干蛋白置于-20℃以下可长期保存，室温条件下可稳定保存3周。
复溶蛋白溶液可在4～7℃保存2～7天，可分装后置于-20℃保存三个月。

CTLA-4/CD152复溶：
打开试剂管前请先离心。
复溶浓度推荐大于100 μg/ml。
冻干蛋白请溶于ddH2O。
复溶后，请根据用量分装冻存，避免反复冻融。

关于CTLA-4/CD152：
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.

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