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TCN2 Protein, Human, Recombinant (His)

产品编号 TMPY-01003

TCN2 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 46.7 kDa and the accession number is P20062-1.

TCN2 Protein, Human, Recombinant (His)

TCN2 Protein, Human, Recombinant (His)

产品编号 TMPY-01003
TCN2 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 46.7 kDa and the accession number is P20062-1.
规格价格库存数量
50 μg
¥ 3,820
现货
100 μg
¥ 6,530
5日内发货
200 μg
¥ 11,130
5日内发货
500 μg
¥ 22,510
5日内发货
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实验操作小课堂
常见问题解答
超声一般需要多久?
超声时长和溶解的量和浓度都有关,一般建议半个小时左右,如果浓度接近最大溶解度,或者需溶解的粉末较多,建议延长超声时间,并辅以加热。
动物实验常用溶解方法?
首先,您需要确认给药剂量、给药方式。对于具体的产品,优先找引用我们产品的文献里的使用方法,再找其他文献里的配方。 如果没有相关的文献,且该化合物的 DMSO 溶解度比较好,我们推荐通用配方: 10% DMSO+40% PEG300+5% Tween-80+45% Saline/PBS/ddH2O。溶剂依次加入,尽量溶解后再加入下一个溶剂。正常鼠建议 DMSO 浓度在 10% 以下,裸鼠体弱鼠等配方的 DMSO 浓度建议在 2% 以下,根据溶液是否澄清,助溶剂 PEG300、Tween-80 的比例可以适当调整。如果有其他助溶剂也可以使用。 以上配方仅供参考,体内配方并不是绝对的,需要根据不同情况进行调整。建议先取少量化合物测试配方,再进行大量配制。配完也可以再使用超声、加热等方式助溶,看看能不能澄清一点。 腹腔注射对粉末的溶解度要求比较高,建议购买盐形式化合物。如果给药剂量比较大,也有报道使用混悬液进行腹腔给药的。 对于灌胃给药,且剂量比较大的情况下,建议用 0.5% CMC-Na 配置成均匀混悬液进行给药。
抑制剂能否用于细胞实验?
可以的,我们的抑制剂都可以用于细胞/体外实验。但有些化合物还没有用于细胞实验的文献,这种情况下,建议您先做预实验,确保研究的可行性。
如何稀释工作液?
根据您的工作液浓度,计算母液所需要稀释的倍数和所需母液的体积。建议用水、生理盐水、PBS等溶剂进行稀释,如果是细胞实验,可以使用培养基。 取适当的溶剂缓慢加入到母液中,直到达到您的工作液浓度,可以通过涡旋或者移液枪轻轻吹打帮助混匀。 我们的化合物大部分是脂溶性的,所以在使用 PBS 或者培养基等稀释工作液的时候,会有沉淀析出,这些都是正常现象,大多时候可以通过超声完全溶解。 工作液建议现配现用!
期货产品没有纯度啊?这个纯度在哪里看
期货产品的话,是没有纯度信息,也没有质检信息的。有了现货之后我们会进行质检,测出试剂的纯度和结构等相关信息,并且展示在官网的活性描述上方。
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产品信息

生物活性
Immobilized CD320 Protein, Mouse, Recombinant (hFc Tag) at 2 μg/mL (100 μL/well) can bind TCN2 Protein, Human, Recombinant (His Tag), the EC50 is 10-62 ng/mL.
TCN2 Protein, Human, Recombinant (His)
产品描述
TCN2 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 46.7 kDa and the accession number is P20062-1.
种属
Human
表达系统
HEK293 Cells
标签C-His
蛋白编号P20062-1
别名
transcobalamin II,TCII,TC-2,TC2,TC,II,D22S750,D22S676
蛋白构建
A DNA sequence encoding the human TCN2 (NP_000346.2) (Met 1-Trp 427) with a C-terminal polyhistidine tag was expressed. Predicted N terminal: Glu 19
蛋白纯度
> 90 % as determined by SDS-PAGE
TCN2 Protein, Human, Recombinant (His)
分子量46.7 kDa (predicted); 43 kDa (reducing conditions)
内毒素< 1.0 EU/μg of the protein as determined by the LAL method.
缓冲液Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
复溶方法
A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
存储
It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
运输方式In general, Lyophilized powders are shipping with blue ice.
研究背景
Transcobalamin II, also known as TCN2 and TC II, is a plasma protein that binds cobalamin (Cbl; vitamin B12) as it is absorbed in the terminal ileum and distributes to tissues. The circulating transcobalamin II-cobalamin complex binds to receptors on the plasma membrane of tissue cells and is then internalized by receptor-mediated endocytosis. Transcobalamin II is a non-glycolated secretory protein of molecular mass 43 kDa. Its plasma membrane receptor (TC II-R) is a heavily glycosylated protein with a monomeric molecular mass of 62 kDa. Human TCN2 gene is composed of nine exons and eight introns spanning approximately 2 kb with multiple potential transcription start sites. A number of genetic abnormalities are characterized either by a failure to express TCN2 or by synthesis of an abnormal protein. The TCN2 deficiency results in cellular cobalamin deficiency, an early onset of megaloblastic anaemia, and neurological abnormalities.

参考文献

SCI 文献

计算器

  • 复溶 计算器
  • 重组蛋白稀释 计算器
  • 比活力 计算器

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