同用名/别名（Synonym）
Interleukin-4; IL-4; B-Cell Stimulatory Factor 1; BSF-1; Binetrakin; Lymphocyte Stimulatory Factor 1; Pitrakinra; IL4
描述（Description）
GMP IL-4 Protein, Human (HEK293) is a recombinant GMP-grade protein produced by HEK293 cells with C-His tag. IL-4 is an anti-inflammatory cytokine acting as a pleiotropic regulator of numerous immune and inflammatory processes.
纯度（Purity）
≥95%, by SDS-PAGE (under reducing (R) & Non-reducing conditions, visualized by Coomassie staining)
生物活性（Bioactivity）
Measured in a cell proliferation assay using TF-1 cells, The ED50 for this effect is ≤ 0.2 ng/mL，Or responding to a specificBioactivity of ＞ 1x 107 units/mg/vail.
氨基酸序列（Target Protein Sequence）
HKCDITLQEIIKTLNSLTEQKTLCTELTVTDIFAASKNTTEKETFCRAATVLRQFYSHHEKDTRCLGATAQQFHRHKQLIRFLKRLDRNLWGLAGLNSCPVKEANQSTLENFLERLKTIMREKYSKCSS
制剂（Trait）
Lyophilized from a 0.2 μm filtered solution of 20 mM PB, 150 mM NaCl, pH 7.4.
复溶（Reconstitution）
It is recommended to redissolve in sterile deionized water.
保存条件&效期（Storage & Stability）
36 months at 2°C to 8°C in lyophilized state
6 months at -20°C to -80°C under sterile conditions after reconstitution
7-10 days at 2°C to 8°C under sterile conditions after reconstitution
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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） | 
The ED50 for this effect is ≤ 0.2 ng/mL.
|
电泳（SDS-PAGE） | 
Recombinant Human IL-4 SDS-PAGE under reducing (R) condition. The gel was stained with Y02201 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 。