Human IL2Ra / CD25 Protein (Hi

分子别名（Synonym）:CD25,IDDM10,IL-2RA,IL2R,p55,TCGFR 种属（Species）：Human 表达系统（Expressed Host）：HEK293 Cells 制剂（Buffer）：Lyophilized from sterile PBS, pH 7.4 分子量（Molecule Mass）：The recombinant human IL2Rα consists of 203 amino acids and has a predicted molecular mass of 23.3 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of rhIL2Rα is approximately 44 kDa due to glycosylation. 内毒素（Endotoxin）：＜1.0 EU per μg by the LAL method. 生物活性(Activity)：1. Using the Octet RED System, the affinity constant (Kd) of Human IL2RA-his (Cat:H1389-802H) bound to Human IL2 was 35nM. 表达区间（Protein Construction）：A DNA sequence encoding the extracellular domainof human IL2 receptor α (NP_000408.1) (Ser 2-Cys 213) was expressed with a C-terminal polyhistidine tag. 存储条件（Storage）： For long term storage, the product should be stored at lyophilized state at -20℃ or lower.Please avoid repeated freeze-thaw cycles. No activity loss is observed after storage at:4-8℃ for 12 months in lyophilized state;-70℃ for 3 months under sterile conditions after reconstitution. 运输条件： In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.