SARS-COV-2 Spike S1 重组蛋白 (D614G, His & Avi)

SARS-COV-2 Spike S1 Protein (D614G, His & Avi)

产品编号 TMPK-00436

The SARS-CoV-2 spike (S) protein is the target of vaccine design efforts to end the COVID-19 pandemic. Despite a low mutation rate, isolates with the D614G substitution in the S protein appeared early during the pandemic, and are now the dominant form worldwide. Here, we analyze the D614G mutation in the context of a soluble S ectodomain construct.

规格	价格	库存
100 μg	¥ 3,250	5日内发货
500 μg	¥ 13,000	5日内发货
1 mg	¥ 21,700	5日内发货

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常见问题解答

问是否能直接用缓冲液对抑制剂 DMSO 母液做梯度稀释？

答大部分情况下，都是可以溶解的。但有时，有机试剂直接加入水相介质时会析出。建议将抑制剂先以DMSO做梯度稀释，再将经过稀释的抑制剂加入缓冲液或细胞培养基。有些抑制剂甚至只有在其工作浓度下才能溶于水相。比如细胞实验中希望终浓度为 1 μM 的话，可以把 10 mM 的 DMSO 母液用 DMSO 稀释到 1 mM，再吸 2 μL 加入到 2 mL 的生理盐水/PBS/细胞培液，终浓度即为 1 μM。为避免药物析出，稀释前，可将母液和培养基 37℃ 预热，避免温度低造成严重析出。若稀释过程中出现化合物析出的情况，建议您采用超声加热的方法使其复溶。

问抑制剂加 DMSO 配成母液之后，能否放在常温的环境保存1周？

答不建议这么做，母液配置好分装保存，建议存于 -20℃ 或 -80℃，尽量避免反复冻融。如果您订购的规格很大，可以考虑分装粉末保存，固体粉末是比较稳定的，-20℃ 可以保存三年。

问收到产品发现冰盒都化了，怎么办？

答一般化合物粉末对温度不敏感，加冰盒是为了防止极端气温，如果冰盒融化不影响产品质量。

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	Immobilized SARS-CoV-2 S1 (D614G) , His Tag at 2μg/ml (100μl/Well) on plate.Dose response curve for Human ACE2, hFc Tag with the EC50 of 23.7ng/ml determined by ELISA.
产品描述	The SARS-CoV-2 spike (S) protein is the target of vaccine design efforts to end the COVID-19 pandemic. Despite a low mutation rate, isolates with the D614G substitution in the S protein appeared early during the pandemic, and are now the dominant form worldwide. Here, we analyze the D614G mutation in the context of a soluble S ectodomain construct.
种属	SARS-CoV-2
表达系统	HEK293 Cells
标签	C-His-Avi
蛋白编号	A0A6G7K2L4
别名	Spike,S1 protein,Spike protein S1,S1 protein,S glycoprotein Subunit1
蛋白构建	Gln14-Arg683(D614G)
蛋白纯度	> 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC
分子量	77.9 kDa (predicted). Due to glycosylation, the protein migrates to 110-120 kDa based on Tris-Bis PAGE result.
内毒素	< 1 EU/μg by the LAL method.
缓冲液	Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS (pH 7.4). Typically, 8% trehalose is incorporated as a protective agent before lyophilization.
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	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	The SARS-CoV-2 spike (S) protein is the target of vaccine design efforts to end the COVID-19 pandemic. Despite a low mutation rate, isolates with the D614G substitution in the S protein appeared early during the pandemic, and are now the dominant form worldwide. Here, we analyze the D614G mutation in the context of a soluble S ectodomain construct.

SARS-COV-2 Spike S1 Protein (D614G, His & Avi)

SARS-COV-2 Spike S1 Protein (D614G, His & Avi)

产品信息

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