描述（Description）
IFN-alpha 2 (IFNA2), belongs to type I interferon family, is a protein secreted by cells infected by a virus and acting on other cells to inhibit viral infection[1]. IFN-alpha 2 exerts cytotoxic activity against CD8+ T cells and induces CD4+ T cell depletion[3]. IFN-alpha 2b/IFNA2 Protein, Human contains 165 a.a. (C24-E188), is a protein produced in E. coli with tag free.
纯度（Purity）
≥95%, by SDS-PAGE (under reducing (R) & Non-reducing conditions, visualized by Coomassie staining)
生物活性（Bioactivity）
≥1 x 107 IU/mg/vail . Measured in a cell proliferation assay using CTLL-2 mouse cytotoxic T cells
氨基酸序列（Target Protein Sequence）
APTSSSTKKTQLQLEHLLLDLQMILNGINNYKNPKLTRMLTFKFYMPKKATELKHLQCLEEELKPLEEVLNLAQSKNFHLRPRDLISNINVIVLELKGSETTFMCEYADETATIVEFLNRWITFCQSIISTLT
制剂（Trait）
Lyophilized from a 0.2 μm filtered solution in 10 mM sodium citrate, pH 4.0 or 50 mM Tris-HCL, 300 mM NaCl, pH 8.0 or 10 mM sodium citrate, pH 4.0, 8% trehalose.
复溶（Reconstitution）
It is recommended to redissolve in sterile deionized water.
保存条件&效期（Storage & Stability）
Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
运输方式(Shipping)
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature listed below.
生物活性（Bioactivity）
Recombinant Human IL-2 stimulates proliferation of CTLL-2 cells. The specific Bioactivity of Y02001 is ≥1 x 107 IU/mg/vail.
电泳（SDS-PAGE）
Greater than 95% as determined by reducing SDS-PAGE.
特别提示：本公司的所有产品仅用于工业应用或者科学研究等非医疗目的,不可用于人类或动物的临床诊断或者治疗,非药用,非食用。
关键字： GMP级;高纯度;批间一致;生物活性;科研专供;
在生物科技领域，丰度蛋白专注重组蛋白供应，以“丰度的风帆为蛋白提供动力，丰度为蛋白护航”为使命，赋能生命科学发展。
苏州丰度依托先进技术平台，打造成熟生产体系，严控基因工程设计、细胞培养、蛋白纯化等环节，优化工艺与管理，确保产品高纯度、高活性且批间一致。产品覆盖基础研究、生物医药研发等多领域，为科研及生产提供多样、适配产品，助力突破技术难题 。