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折扣/货期| 货号：40-622-0.005 mg | 规格：0.005 mg | 目录价：￥3783 |
| 货号：40-622-0.025 mg | 规格：0.025 mg | 目录价：￥5674.5 |
产品详情
* 以下信息仅供参考，详情请以原厂网站为准
产品名称:
Secreted IL-2 Receptor alpha Recombinant Protein
别名:
CD25, IL2R, TCGFR, IDDM10, Interleukin-2 receptor subunit alpha, TAC antigen, IL-2 receptor subunit alpha
表达系统:
CHO cells
保存温度:
The lyophilized Secreted IL-2 Receptor alpha recombinant protein is stable for at least 2 years from date of receipt at -20˚C. Reconstituted Secreted IL-2 Receptor alpha is stable for at least 3 months when stored in working aliquots with a carrier protein at -20˚C. As with any protein, exposing Secreted IL-2 Receptor alpha recombinant protein to repeated freeze / thaw cycles is not recommended. When working with proteins care should be taken to keep recombinant protein at a cool and stable temperature.
运输温度:
Blue Ice
产品形式:
Lyophilized
产地:
美国
生产商:
Prosci
功能与背景:
The IL-2 receptor system consists of three non-covalently linked subunits termed IL-2R alpha, IL-2R beta, and IL-2R gamma. The IL-2R alpha is a type I transmembrane protein consisting of a 219 amino acid extracellular domain, a 19 amino acid transmembrane domain and a 13 amino acid intracellular domain, which is not involved in the transduction of IL-2 signals. Proteolytic processing of IL-2R alpha releases the entire extracellular domain of IL-2R alpha, thereby generating a 219 amino acid soluble protein called soluble IL-2R alpha (sIL-2R alpha). The homodimeric form binds IL-2 (KD=10mM) and facilitates IL-2 signaling. The secreted sIL-2R alpha is expressed on leukemia cells, lymphoma cells, and newly activated T and B cells, as well as on approximately 10% of NK cells. Recombinant Human sIL-2 Receptor alpha is a 24.8 kDa protein containing 219 amino acid residues consisting of only the extracellular domain of IL-2R alpha. As a result of glycosylation, Recombinant Human sIL-2 Receptor alpha migrates with an apparent molecular mass of approximately 40-50 kDa by SDS-PAGE gel, under reducing and non-reducing conditions.
纯度:
Greater than 98% by SDS-PAGE gel and HPLC analyses.
Endotoxin level is less than 0.1 ng per μg (1EU/μg).
Endotoxin level is less than 0.1 ng per μg (1EU/μg).
生物活性:
Determined by its ability to increase the proliferation effect of IL-2 in murine CTLL-2 cells. In the presence of 1 ng/ml of recombinant IL-2, the expected ED50 for this effect is between 0.5 - 1.5 ug/ml.
Accession #:
NP_000408.1
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