IL-12B 重组蛋白, Marmoset (hFc)

IL-12B Protein, Marmoset, Recombinant (hFc)

产品编号 TMPY-03671

IL-12B Protein, Marmoset, Recombinant (hFc) is expressed in HEK293 mammalian cells with hFc tag. The predicted molecular weight is 69.4 kDa and the accession number is F7IQ84.

规格	价格	库存	数量
50 μg	¥ 2,940	5日内发货

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常见问题解答

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。

问产品溶解需要超声吗？如果没有超声仪怎么办？

答超声可以加快粉末的溶解速度，如果您的化合物溶解不了，建议您尝试超声。如果您没有超声仪，建议您选择较低母液浓度，或者较少粉末量，尝试溶解。

问超声一般需要多久？

答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。

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.

问母液配置的计算方法？

答（1） c=n/v=m/M/v 浓度=物质的量/体积=质量/相对分子质量/体积（2）官网产品详情页下方有溶液配制表格，可以参考计算好的加入溶剂体积

产品信息

生物活性	1. Measured by its binding ability in a functional ELISA. 2. Immobilized marmoset IL12B-Fc at 10 μg/mL (100 μL/well) can bind biotinylated human IL12RB1-His . The EC50 of human IL12RB1-His is 0.66-1.53 μg/mL.
产品描述	IL-12B Protein, Marmoset, Recombinant (hFc) is expressed in HEK293 mammalian cells with hFc tag. The predicted molecular weight is 69.4 kDa and the accession number is F7IQ84.
种属	Marmoset
表达系统	HEK293 Cells
标签	C-hFc
蛋白编号	F7IQ84
别名	interleukin 12B
蛋白构建	A DNA sequence encoding the marmoset IL12B (F7IQ84) (Met1-Asn328) was expressed with the Fc region of human IgG1 at the C-terminus. Predicted N terminal: Ile 23
蛋白纯度	> 95 % as determined by SDS-PAGE
分子量	61.9 kDa (predicted); 66 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	Subunit beta of interleukin 12 (also known as natural killer cell stimulatory factor 2, or cytotoxic lymphocyte maturation factor 2, p40) (IL12B) is a subunit of human interleukin 12. IL12B/IL-12B is a cytokine that acts on T and natural killer cells and has a broad array of biological activities. Interleukin 12 is a disulfide-linked heterodimer composed of the 40 kD cytokine receptor-like subunit encoded by this gene, and a 35 kD subunit encoded by IL12A. IL12B/IL-12B is expressed by activated macrophages that serve as an essential inducer of Th1 cells development. This cytokine is important for sustaining a sufficient number of memory/effector Th1 cells to mediate long-term protection to an intracellular pathogen. Overexpression of this gene was observed in the central nervous system of patients with multiple sclerosis (MS), suggesting a role of this cytokine in the pathogenesis of the disease. The promoter polymorphism of this gene has been reported to be associated with the severity of atopic and non-atopic asthma in children. IL12B/IL-12B associates with IL23A to form the IL-23 interleukin, a heterodimeric cytokine that functions in innate and adaptive immunity.Cancer ImmunotherapyImmune CheckpointImmunotherapyTargeted Therapy

IL-12B Protein, Marmoset, Recombinant (hFc)

IL-12B Protein, Marmoset, Recombinant (hFc)

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