美国PeproTech公司是全球最大的重组细胞因子和蛋白生产商之一，始终致力于为生命科学研究开发重组蛋白及相关产品，如今已成为能提供多种高质量细胞因子和重组蛋白，相应的单克隆、多克隆和生物素标记抗体，以及ELISA试剂盒的引领者。PeproTech.的产品涵盖免疫调节蛋白、白介素、集落刺激因子、生长因子、无动物成分的重组蛋白、化学趋化因子、干扰素、脂联素、成纤维生长因子、转化生长因子、肿瘤坏死因子、神经营养素和防御素等诸多生命科学研究领域中重要的生物活性分子。PeproTech公司的产品种类、规格齐全，更新速度快，且价格适中，已广为中国的科研工作者所使用。
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为跟踪当今科研发展、满足日益增长的需求，PeproTech公司追求不断创新和与时俱进。PeproTech公司2019年11月推出2种新产品，分别是：
| 类别 |
名称 |
货号 |
规格 |
价格/RMB |
| 细胞因子 |
Rat IL-21 |
400-41-2 |
2ug |
￥1,050 |
| 细胞因子 |
Rat IL-21 |
400-41-10 |
10ug |
￥2,570 |
| 细胞因子 |
Rat IL-21 |
400-41-100 |
100ug |
￥16,010 |
| 细胞因子 |
Rat IL-21 |
400-41-250 |
250ug |
￥28,020 |
| 细胞因子 |
Rat IL-21 |
400-41-500 |
500ug |
￥48,040 |
| 细胞因子 |
Rat IL-21 |
400-41-1000 |
1000ug |
￥80,080 |
| 细胞因子 |
Human Exodus-2 |
300-35A-5 |
5ug |
￥1,050 |
| 细胞因子 |
Human Exodus-2 |
300-35A-20 |
20ug |
￥2,570 |
| 细胞因子 |
Human Exodus-2 |
300-35A-100 |
100ug |
￥9,240 |
| 细胞因子 |
Human Exodus-2 |
300-35A-250 |
250ug |
￥16,170 |
| 细胞因子 |
Human Exodus-2 |
300-35A-500 |
500ug |
￥27,720 |
| 细胞因子 |
Human Exodus-2 |
300-35A-1000 |
1000ug |
￥46,200 |
1.重组大鼠 IL-21
产品描述:IL‐21 is a pleiotropic cytokine produced by CD4+ T cells in response to antigenic stimulation. Its action generally enhances antigen‐specific responses of immune cells. The biological effects of IL‐21 include: inducing the differentiation of T cell‐stimulated B cells into plasma cells and memory B cells; the stimulation of IgG production in conjunction with IL‐4; and the induction of apoptotic effects in naïve B cells and stimulated B cells in the absence of T cell signaling. Additionally, IL‐21 promotes the anti‐tumor activity of CD8+ T cells and NK cells. IL‐21 exerts its effect through binding to a specific type I cytokine receptor, IL‐21R, which also contains the γ chain (γc) found in other cytokine receptors, including IL‐2, IL‐4, IL‐7, IL‐9 and IL‐15. The IL‐21/IL‐21R interaction triggers a cascade of events, which includes activation of the tyrosine kinases JAK1 and JAK3, followed by activation of the transcription factors STAT1 and STAT3. Recombinant Rat IL‐21 is a 15.3 kDa protein containing 130 amino acid residues.
2.重组人Exodus-2
产品描述:Exodus‐2 is a CC chemokine that signals through the CCR7 receptor. It is expressed in lymph nodes of certain endothelial cells, and in the spleen and appendix. Exodus‐2 chemoattracts T and B lymphocytes and inhibits hematopoiesis. Exodus‐2 contains six cysteine residues, including the four conserved cysteines present in CC chemokines. Recombinant Human Exodus‐2 (CCL21) is a 12.2 kDa protein containing 111 amino acid residues.
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