Influenza A H5N8 (A/turkey/Germany-MV/R2472/2014) HA

Influenza A H5N8 (A/turkey/Germany-MV/R2472/2014) Hemagglutinin/HA Protein (His)

产品编号 TMPY-04840

Influenza A H5N8 (A/turkey/Germany-MV/R2472/2014) Hemagglutinin/HA Protein (His) is expressed in Baculovirus insect cells with His tag. The predicted molecular weight is 60.1 kDa.

规格	价格	库存	数量
100 μg	¥ 4,460	5日内发货

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常见问题解答

问如何设置母液浓度？

答母液浓度需低于官网给出的溶解度，在这个范围内，根据工作液浓度设置母液浓度，细胞实验中，建议母液浓度设定在工作液浓度的 1000 倍以上。

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。

问细胞实验中，抑制剂如何溶解？

答用 DMSO 配置较高浓度母液，母液存于 -80℃，建议多分装几管，一周内使用的存于 4℃，避免反复冻融。实验时用 pbs、生理盐水、培养基、水这些稀释，细胞实验DMSO的终浓度不超过 0.1%。如果超过 0.1%，则需要在做预试验的时候，先进行溶剂阴性对照实验，排除溶剂对细胞的影响。

问抑制剂能否用于动物实验？

答可以的，我们的抑制剂都可以用于动物/体内实验。但有些化合物还没有用于动物实验的文献，这种情况下，建议您先做预实验，确保研究的可行性。

问收到化合物后，是否需要称量后配制储备液？

答对于小包装，如 1 mg、5 mg、10 mg 等，不建议二次称量。这样会导致化合物损耗，且无法估算。TargetMol 所有产品原装进口，精准称量，您收到后可直接添加相应量溶剂。对于大包装，如果您需要分批次实验，可每次称量后配制储备液，建议您 10 mg 起称，称量的误差会小一些；当然条件允许，也可以先配制成高浓度母液，分装备用。

产品信息

生物活性	Activity testing is in progress. 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	Influenza A H5N8 (A/turkey/Germany-MV/R2472/2014) Hemagglutinin/HA Protein (His) is expressed in Baculovirus insect cells with His tag. The predicted molecular weight is 60.1 kDa.
种属	H5N8
表达系统	Baculovirus Insect Cells
标签	C-His
别名	Harvey rat sarcoma viral oncogene homolog
蛋白构建	A DNA sequence encoding the Influenza A virus (A/turkey/Germany-MV/R2472/2014 (H5N8)) hemagglutinin (translated amino acids of EPI544756) (Met1-Gln530), termed as HA, was expressed with a polyhistidine tag at the C-terminus. Predicted N terminal: Asp 17
蛋白纯度	> 90 % as determined by SDS-PAGE.
分子量	60.1 kDa (predicted)
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 20 mM Tris, pH 8.0, 500 mM NaCl, 10% gly. 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	The influenza viral Hemagglutinin (HA) protein is a homotrimer with a receptor binding pocket on the globular head of each monomer.HA has at least 18 different antigens. These subtypes are named H1 through H18.HA has two functions. Firstly, it allows the recognition of target vertebrate cells, accomplished through the binding to these cells' sialic acid-containing receptors. Secondly, once bound it facilitates the entry of the viral genome into the target cells by causing the fusion of the host endosomal membrane with the viral membrane. The influenza virus Hemagglutinin (HA) protein is translated in cells as a single protein, HA, or hemagglutinin precursor protein. For viral activation, hemagglutinin precursor protein (HA) must be cleaved by a trypsin-like serine endoprotease at a specific site, normally coded for by a single basic amino acid (usually arginine) between the HA1 and HA2 domains of the protein. After cleavage, the two disulfide-bonded protein domains produce the mature form of the protein subunits as a prerequisite for the conformational change necessary for fusion and hence viral infectivity.