Recombinant Human IL-2 (aldesleukin)

产品介绍

{"gui_ge":"10ug","biao_da_su_zhu":"E.coli","biao_qian":"aldesleukin","fen_zi_liang":"15.5 KDa","biao_guan_fen_zi_liang":"14 KDa, reducing conditions","xing_tai":"Lyophilized from a 0.2 μm filtered solution of 10mM Acetata-Na, 5% Trehaiose, pH 4.5.","chun_du":"Greater than 95% as determined by reducing SDS-PAGE.","nei_du_su_shui_ping":"Less than 0.1 ng\/µg (1 EU\/µg) as determined by LAL test.","huo_xing":"Measured in a cell proliferation assay using CTLL‑2 mouse cytotoxic T cells. The ED50 for this effect is 90-270 pg\/ml.","rong_jie_fang_fa":"Always centrifuge tubes before opening.Do not mix by vortex or pipetting.\nIt is not recommended to reconstitute to a concentration less than 100μg\/ml.\nDissolve the lyophilized protein in distilled water.\nPlease aliquot the reconstituted solution to minimize freeze-thaw cycles. ","chu_cun_fang_fa":"Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks.\nReconstituted protein solution can be stored at 4-7°C for 2-7 days.\nAliquots of reconstituted samples are stable at < -20°C for 3 months.","yun_shu_tiao_jian":"The product is shipped at ambient temperature.\nUpon receipt, store it immediately at the temperature listed below.","bei_jing_shuo_ming":"Recombinant Human Interleukin-2 is a highly purified protein with a molecular weight of approximately 15,300 Daltons. The chemical name is des-alanyl-1, serine-145 Human Interleukin-2. It is produced by recombinant DNA technology using a genetically engineered E. coli strain containing an analog of the human interleukin-2 gene. Genetic engineering techniques were used to modify the Human IL-2 gene, and the resulting expression clone encodes a modified Human IL-2. This recombinant form differs from native Interleukin-2 in following ways: it is not glycosylated; the molecule has serine substituted for cysteine at amino acid position 145; the aggregation state of molecule is likely to be different from that of native IL-2."}