TrkB 重组蛋白, Rat (His)

TrkB Protein, Rat, Recombinant (His)

产品编号 TMPY-03162

TrkB Protein, Rat, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 47.1 kDa and the accession number is Q63604.

规格	价格	库存	数量
20 μg	¥ 1,890	5日内发货

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常见问题解答

问Tween-20 可以用 Tween-80 替代吗？

答不建议使用 Tween-20。相较于 Tween-20，Tween-80 的耐受性更好，Tween-80已被用作评估实验药物和毒物的行为影响的工具，且没有明显的副作用。参考文献：Castro CA， Hogan JB， Benson KA， Shehata CW， Landauer MR. Behavioral effects of vehicles: DMSO， ethanol， Tween-20， Tween-80， and emulphor-620. Pharmacol Biochem Behav. 1995 Apr;50(4):521-6.

问产品的溶解度是多少？

答建议您先查询TargetMol官网、陶术官网，看该抑制剂的产品介绍，找到溶解度信息。如果没有相应信息，建议联系技术对该化合物的溶解度进行测定。

问如何稀释工作液？

答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！

问抑制剂产品应如何储存？

答粉末储存在 -20℃，可以存 3 年以上。母液一般储存于 -80℃，可以存 1 年以上，建议多分装几管，避免反复冻融。常用的存于 4℃，可放一周以上。

问得到的杀死细胞的 IC50 与网页上 IC50 差距较大怎么办？

答您所测试的IC50是指细胞的增殖抑制实验（半抑制率），细胞增殖抑制实验 IC50值，和网页上的靶点IC50其实是不同的意义。文献里和网页上 IC50其实往往是指对于靶点无细胞实验的抑制率，这样的实验一般是通过激酶或者蛋白纯化实验做出来的，nM 级别的浓度比较常见，但是细胞的增殖抑制实验 IC50 是指细胞的半致死率，同时牵涉到细胞的代谢以及渗透，一般浓度会高一些。另外，同一个化合物对不同细胞模型的效果也是不同的，建议尝试增加孵育量、延长孵育时间。

产品信息

生物活性	Measured by its binding ability in a functional ELISA. Immobilized rat NTRK2-His at 10 μg/ml (100 μl/well) can bind biotinylated mouse BDNF , The EC50 of biotinylated mouse BDNF is 12.2-28.6 ng/ml.
产品描述	TrkB Protein, Rat, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 47.1 kDa and the accession number is Q63604.
种属	Rat
表达系统	HEK293 Cells
标签	C-His
蛋白编号	Q63604
别名	neurotrophic tyrosine kinase, receptor, type 2
蛋白构建	A DNA sequence encoding the rat NTRK2 (Q63604-Isoform T1) (Met1-His429) was expressed with a polyhistidine tag at the C-terminus. Predicted N terminal: Cys 32
蛋白纯度	> 95 % as determined by SDS-PAGE
分子量	47.1 kDa (predicted); 67 kDa (reducing condition, due to glycosylation)
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	TrkB receptor also known as TrkB tyrosine kinase or BDNF/NT-3 growth factors receptor or neurotrophic tyrosine kinase, receptor, type 2 (NTRK2) is a single transmembrane catalytic receptor with intracellular tyrosine kinase activity. TrkB/NTRK2 is a member of the neurotrophic tyrosine receptor kinase (NTRK) family. TrkB tyrosine kinase (TrkB) or NTRK2 is coupled to the Ras, Cdc42/Rac/RhoG, MAPK, PI3-K, and PLCgamma signaling pathways. There are four members of the Trk family; TrkA, TrkB, and TrkC and a related p75NTR receptor. Each family member binds different neurotrophins with varying affinities. TrkB/NTRK has the highest affinity for brain-derived neurotrophic factor (BDNF) and is involved in neuronal plasticity, long-term potentiation, and apoptosis of CNS neurons. Other neurotrophins includenerve growth factor(NGF), neurotrophin-3 and neurotrophin-4. TrkB/NTRK is a membrane-bound receptor that, upon neurotrophin binding, phosphorylates itself and members of the MAPK pathway. Signaling through this kinase leads to cell differentiation. Mutations in TrkB/NTRK have been associated with obesity and mood disorders.Cancer ImmunotherapyImmune CheckpointImmunotherapyTargeted Therapy

TrkB Protein, Rat, Recombinant (His)

TrkB Protein, Rat, Recombinant (His)

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