HER2/ERBB2 Protein, Rat, Recombinant (E. coli, His)

产品编号 TMPJ-00791

ERBB2 belongs to the protein kinase superfamily, Tyr protein kinase family and EGF receptor subfamily. It contains a protein kinase domain. ERBB2 is widely expressed in epithelial cells, and amplification and/or overexpression of ErbB2 has been reported associated with malignancy and a poor prognosis in numerous carcinomas, including breast, prostate and ovarian cancers. Rat ERBB2 is an essential component of a neuregulin-receptor complex, although neuregulins do not interact with it alone. ErbB2 mediates signalling pathways which involve mitogen-activated protein kinase and phosphatidylinositol-3 kinase, this receptor plays a key role in development, cell proliferation and differentiation.

HER2/ERBB2 Protein, Rat, Recombinant (E. coli, His)

产品编号 TMPJ-00791

规格	价格	库存
10 μg	¥ 740	5日内发货
50 μg	¥ 1,970	5日内发货
500 μg	¥ 12,100	5日内发货
1 mg	¥ 17,400	5日内发货

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实验操作小课堂

常见问题解答

问超声久了会不会对化合物的结构有影响？

答建议以较低频率对化合物进行超声，不会对化合物的结构造成影响。

问如何选择合适的溶剂？

答常用的溶剂包括DMSO、水、乙醇等。建议您根据抑制剂给出的溶解度参考，选择合适的溶剂。如果该抑制剂可以溶于DMSO，建议使用没有吸潮新开封的 DMSO，如果有潮气污染，很容易带来抑制剂降解或难溶的问题。如果该抑制剂可以溶于水，建议您根据实验类型选择无菌水、生理盐水、无菌 PBS 、培养基等作为溶剂。

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。

问小规格产品，收到瓶子后看不到任何东西？

答由于产品规格小，粉末在运输过程中产生的静电导致过于分散，管壁和盖子上皆会粘着，您可以放心，离心后加入适量溶剂直接配制母液、充分溶解即可。

问细胞实验中需要加多少抑制剂？

答通常建议您参考同模型实验发表的文献报道；除参考文献报道以外，还需要通过预实验做“剂量-效应曲线”确定最佳作用浓度（浓度梯度）；通过“时间-效应曲线”确定最佳孵育时间（处理时间梯度）。另外，抑制剂的使用量受多种因素影响，包括抑制对象的可接触性、细胞通透性、孵育时间、细胞种类等等。我们建议通过检索文献确定使用抑制剂的起始浓度。如果有报道的 Ki 值或 IC50 值，可以采用其 5-10 倍的量开始尝试以达到抑制酶活性的最佳效果。如果抑制剂的 Ki 值或 IC50 值未知，则需要在更广泛的范围尝试抑制剂的使用浓度，并采用 Michaelis-Menten 动力学计算 Ki 值。一般设立溶解抑制剂时所采用的溶剂作为对照，以排除溶剂的非特异性影响。

产品信息

生物活性	Activity has not been tested. It is theoretically active, but we cannot guarantee it. If you require protein activity, we recommend choosing the eukaryotic expression version first.
产品描述	ERBB2 belongs to the protein kinase superfamily, Tyr protein kinase family and EGF receptor subfamily. It contains a protein kinase domain. ERBB2 is widely expressed in epithelial cells, and amplification and/or overexpression of ErbB2 has been reported associated with malignancy and a poor prognosis in numerous carcinomas, including breast, prostate and ovarian cancers. Rat ERBB2 is an essential component of a neuregulin-receptor complex, although neuregulins do not interact with it alone. ErbB2 mediates signalling pathways which involve mitogen-activated protein kinase and phosphatidylinositol-3 kinase, this receptor plays a key role in development, cell proliferation and differentiation.
种属	Rat
表达系统	E. coli
标签	C-6xHis
蛋白编号	P06494
别名	Receptor tyrosine-protein kinase erbB-2,Proto-oncogene Neu,Proto-oncogene c-ErbB-2,p185neu,p185erbB2,ERBB2,Epidermal growth factor receptor-related protein,EGFR2,CD340
氨基酸序列	Ala67-Val323
蛋白构建	Ala67-Val323
蛋白纯度	Greater than 95% as determined by reducing SDS-PAGE. (QC verified)
分子量	32 KDa (reducing condition)
内毒素	< 0.1 ng/µg (1 EU/µg) as determined by LAL test.
缓冲液	Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, 5% Trehalose, 4M Urea, pH 7.4.
复溶方法	Reconstitute the lyophilized protein in distilled water. The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing.
存储	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. Solutions are shipping with dry ice.
研究背景	ERBB2 belongs to the protein kinase superfamily, Tyr protein kinase family and EGF receptor subfamily. It contains a protein kinase domain. ERBB2 is widely expressed in epithelial cells, and amplification and/or overexpression of ErbB2 has been reported associated with malignancy and a poor prognosis in numerous carcinomas, including breast, prostate and ovarian cancers. Rat ERBB2 is an essential component of a neuregulin-receptor complex, although neuregulins do not interact with it alone. ErbB2 mediates signalling pathways which involve mitogen-activated protein kinase and phosphatidylinositol-3 kinase, this receptor plays a key role in development, cell proliferation and differentiation.

HER2/ERBB2 Protein, Rat, Recombinant (E. coli, His)

HER2/ERBB2 Protein, Rat, Recombinant (E. coli, His)

产品信息

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