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- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
-20℃
- 保质期:
12个月
- 英文名:
Recombinant Attractin (ATRN)
- 库存:
1000
- 供应商:
上海信裕
| Organism species | Homo sapiens (Human) |
| Product No. | xy304Hu01 |
| Source | Prokaryotic expression |
| Host | E.coli |
| Purity | > 95% |
| UOM | 50ug |
| Predicted Molecular Mass | n/a |
| Concentration | n/a |
| Applications | SDS-PAGE; WB; ELISA; IP. |
| Endotoxin Level | <1.0EU per 1µg (determined by the LAL method) |
| Formulation | Supplied as lyophilized form in PBS, pH7.4, containing 5% trehalose, 0.01% sarcosyl. |
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.
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.
吸引素(ATRN)重组蛋白Ready-to-use: No need to heat, dilute or add reducing agents before use.
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文献和实验采用6xHistidine-tag进行第一步的收集。由于6xHistidine-tag对Ni-NTA matrix具有极高的亲和能力,通过分批纯化,重组蛋白可以高效收集。作为阳性负对照, 生物 素与Strep-tag纯化系统不兼容,其通常存在于培养基中,经过6xHistidine-tag的收集,生物素可以除去。如果由必要,可以采用Strep-tag作为第二步纯化以获得更高纯度的蛋白。
。当某一个标签的使用,一是能构成表位利于纯化和检测;二是构成独特的结构特征(结合配体)利于纯化。组氨酸残基侧链与固态的镍有强烈的吸引力,可用于固定化金属螯合层析(IMAC),对重组蛋白进行分离纯化。使用His-tag有下面优点:1.标签的分子量小,只有~0.84KD,而GST和蛋白A分别为~26KD和~30KD,一般不影响目标蛋白的功能;2.His标签融合蛋白可以在非离子型表面活性剂存在的条件下或变性条件下纯化,前者在纯化疏水性强的蛋白得到应用,后者在纯化包涵体蛋白时特别有用,用高浓度的变性剂溶解
,如今已成为能提供多种高质量细胞因子和重组蛋白,相应的单克隆、多克隆和生物素标记抗体,以及ELISA试剂盒的世界领导者。PeproTech Inc.的产品涵盖免疫调节蛋白、白介素、集落刺激因子、生长因子、化学趋化因子、干扰素、脂联素、成纤维生长因子、转化生长因子、肿瘤坏死因子、神经营养素和防御素等诸多生命科学研究领域中重要的生物活性分子。 为跟踪当今科研发展、满足日益增长的需求,PeproTech Inc.研制出无动物成分的重组蛋白(animal-free recombinant
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