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- 技术资料
- 保存条件：
-20℃
- 保质期：
12个月
- 英文名：
Recombinant Interleukin 2 (IL2)
- 库存：
1000
- 供应商：
上海信裕
白介素2(IL2)重组蛋白
Recombinant Interleukin 2 (IL2)
FOR IN VITRO AND RESEARCH USE ONLY, NOT FOR USE IN CLINICAL DIAGNOSTIC PROCEDURES!
| Organism species | Rattus norvegicus (Rat) |
| Product No. | |
| Source | Prokaryotic expression |
| Host | E.coli |
| Purity | > 90% |
| UOM | 50ug |
| Predicted Molecular Mass | 45.5kDa |
| Concentration | n/a |
| Applications | SDS-PAGE; WB; ELISA; IP. |
| Endotoxin Level | <1.0EU per 1µg (determined by the LAL method) |
| Residues | Ala21~Gln155 with two N-terminal Tags, His-tag and GST-tag |
白介素2(IL2)重组蛋白
| Formulation | Supplied as lyophilized form in PBS, pH7.4, containing 5% trehalose, 0.01% sarcosyl. |
SEQUENCES
The sequence of the target protein is listed below.
APTSSPAKET QQHLEQLLLD LQVLLRGIDN YKNLKLPMML TFKFYLPKQA TELKHLQCLE NELGALQRVL DLTQSKSFHL EDAGNFISNI RVTVVKLKGS ENKFECQFDD EPATVVEFLR RWIAICQSII STMTQ
APTSSPAKET QQHLEQLLLD LQVLLRGIDN YKNLKLPMML TFKFYLPKQA TELKHLQCLE NELGALQRVL DLTQSKSFHL EDAGNFISNI RVTVVKLKGS ENKFECQFDD EPATVVEFLR RWIAICQSII STMTQ
USAGE
Reconstitute in sterile PBS, pH7.2-pH7.4.
STORAGE AND STABILITY
白介素2(IL2)重组蛋白Storage: Avoid repeated freeze/thaw cycles. Store at 2-8oC for one month. Aliquot and store at -80oC for 12 months.
Stability Test: The thermal stability is described by the loss rate of the target protein. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37oC for 48h, and no obvious degradation and precipitation were observed. (Referring from China Biological Products Standard, which was calculated by the Arrhenius equation.) The loss of this protein is less than 5% within the expiration date under appropriate storage condition.
Stability Test: The thermal stability is described by the loss rate of the target protein. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37oC for 48h, and no obvious degradation and precipitation were observed. (Referring from China Biological Products Standard, which was calculated by the Arrhenius equation.) The loss of this protein is less than 5% within the expiration date under appropriate storage condition.
About the MARKER (complimentary)
白介素2(IL2)重组蛋白Effective Size Range: 10kDa to 70kDa.
Protein bands: 10kDa, 14kDa, 18kDa, 22kDa, 26kDa, 33kDa, 44kDa and 70kDa.
Double intensity bands: The 26kDa, 18kDa, 10kDa bands are at double intensity to make location and size approximation of proteins of interest quick and easy.
Ready-to-use: No need to heat, dilute or add reducing agents before use.
Protein bands: 10kDa, 14kDa, 18kDa, 22kDa, 26kDa, 33kDa, 44kDa and 70kDa.
Double intensity bands: The 26kDa, 18kDa, 10kDa bands are at double intensity to make location and size approximation of proteins of interest quick and easy.
Ready-to-use: No need to heat, dilute or add reducing agents before use.
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文献和实验相关实验
1、CHO细胞 CHO细胞即中国仓鼠卵巢细胞(Chinese hamster ovary)，该细胞具有不死性，可以传代百代以上，是目前生物工程上广泛使用的细胞。全世界批准正式应用于人类疾病治疗或疾病预防的基因工程产品约有三十多种，其中只有一种(乙肝疫苗)是由酵母菌生产的，其余所有产品都是由CHO细胞和大肠杆菌生产的，大肠杆菌不能形成有活性的二聚体(如白介素2)，也不具有糖基化的功能(如EPO)，而CHO却具有如上的功能，因此CHO成为表达复杂生物大分子的理想宿主。另外CH0细胞在基因工程使用中
排斥反应的“嵌合型”单抗。目前基因工程抗体研究较多的是小分子抗体，尤其是单链抗体（single chain v fragment scFv）。scFv是将重链可变区(VH)和轻链可变区(VL)通过肽链相连而获得的重组蛋白，scFv具有分子量小，约相当于完整抗体的1/6；组织穿透能力强，易于进入靶部位，适合靶向治疗；基因结构简单，构建表达方便；免疫源性比相应鼠源单抗小；可以制备融合蛋白；无Fc段，减少非特异性吸附；亲和力高等优点。90年代以来出现了噬菌体抗体库技术，使人们从利用DNA重组技术改造原有抗体，发展
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白介素2(IL2)重组蛋白
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