Ebola virus EBOV GP2 / Glyco重组蛋白重组蛋白 (TMPY-00255)

Ebola virus EBOV (subtype Zaire, strain H.sapiens-wt/GIN/2014/Kissidougou-C15) GP2/Glycoprotein Protein (Fc)

产品编号 TMPY-00255 Ebola virus EBOV (subtype Zaire, strain H.sapiens-wt/GIN/2014/Kissidougou-C15) GP2/Glycoprotein Protein (Fc)

Ebola virus EBOV (subtype Zaire, strain H.sapiens-wt/GIN/2014/Kissidougou-C15) GP2/Glycoprotein Protein (Fc) is expressed in HEK293 mammalian cells with Fc tag. The predicted molecular weight is 43.4 kDa and the accession number is X5HMX4.

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

问为什么重组蛋白的体积和质量与预期不符？

答蛋白冻干粉由蛋白原液冻干而来，冻干粉质量不等同于蛋白质量。由于冻⼲产品的体积大⼩受多种因素影响，包括冻⼲前缓冲液的组分、盐离⼦浓度以及产品本身的浓度等。冻⼲粉可能看上去很多，也可能肉眼不易观察到，这些都是正常现象，请您放心使用。在收到产品后，照常复溶、使用或分装储存即可。

问重组蛋白产品该如何保存？

答1) 存储条件:重组蛋白产品收到后，如不立即使用，应当保存在 -20℃ 至 -80℃ 的条件下。冻干粉可稳定保存 12 个月以上，液体类产品在 -80℃ 条件下可保存 6-12 个月。已复溶的重组蛋白样品需尽快用完，如果不能在一周内用完，需在 -20℃ 至 -80℃ 保存，可保存 3 个月以上\n2) 避免反复融冻:重组蛋白产品应注意避免反复冻融，建议将重组蛋白产品分装成多份。分装冻存时，建议选择含有一定浓度载体蛋白的溶液或培养基复溶产品。产品浓度不低于 100 ug/mL，且每管的体积不小于 20 uL。

问蛋白能保证活性吗？

答我们有现货的产品，有活性数据的话会展示在官网生物活性那栏，没有数据的也不代表就一定没有活性，是我们还没有建立活性检测方法，没有进行测试，但是我们的蛋白都是优先按照有活性的方法去表达纯化的。

问如何将冻干的重组蛋白配置为储备液？

答在打开盖⼦之前，先使用 10000-12000 rpm 的转速进行离心，20-30 秒，将附着在管盖或管壁上的冻⼲粉收集到管底，以避免损失。大多数蛋白可通过加入无菌蒸馏水来重新溶解。如果需要除水以外的其他稀释剂，产品 COA 中会对其进行说明。一般储备液浓度建议不要低于 100 μg/mL，分装储存避免反复冻融。

问重组蛋白产品是如何运输的？

答大部分重组蛋白产品为冻⼲粉，对温度不敏感，在室温下稳定，一般室温或蓝冰运输。对于液体类蛋白，一般采用⼲冰运输。如果您收到产品时发现冰盒已经融化，无需担心，蛋白可以正常使用，短时间内不会影响产品质量。如果特定蛋白在室温下不稳定，我们会提供相应的低温运输方式，以确保产品质量不受影响。

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	Ebola virus EBOV (subtype Zaire, strain H.sapiens-wt/GIN/2014/Kissidougou-C15) GP2/Glycoprotein Protein (Fc) is expressed in HEK293 mammalian cells with Fc tag. The predicted molecular weight is 43.4 kDa and the accession number is X5HMX4.
种属	EBOV
表达系统	HEK293 Cells
标签	N-Fc
蛋白编号	X5HMX4
蛋白构建	A DNA sequence encoding the Zaire ebolavirus(strain H.sapiens-wt/GIN/2014/Kissidougou-C15) GP (AHX24649.1) (Glu502-Gln650) was expressed with the Fc region of mouse IgG1 at the N-terminus. Predicted N terminal: Glu 502
蛋白纯度	> 90 % as determined by SDS-PAGE.
分子量	43.4 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 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	The fourth gene of the EBOV genome encodes a 16-kDa envelope-attached glycoprotein (GP) and a 11 kDa secreted glycoprotein (sGP). Both GP and sGP have an identical 295-residue N-terminus, however, they have different C-terminal sequences. Recently, great attention has been paid to GP for vaccines design and entry inhibitors isolation. GP is a class I fusion protein which assembles as trimers on viral surface and plays an important role in virus entry and attachment. Mature GP is a disulfide-linked heterodimer formed by two subunits, GP1 and GP2, which are generated from the proteolytical process of GP precursor (pre-GP) by cellular furin during virus assembly . The GP1 subunit contains a mucin domain and a receptor-binding domain (RBD); the GP2 subunit has a fusion peptide, a helical heptad-repeat (HR) region, a transmembrane (TM) domain, and a 4-residue cytoplasmic tail. The RBD of GP1 mediates the interaction of EBOV with cellular receptor (e.g. DC-SIGN/LSIGN, TIM-1, hMGL, NPC1, β-integrins, folate receptor-α, and Tyro3 family receptors), of which TIM1 and NPC1 are essential for EBOV entry; the mucin domain having N- and O-linked glycans enhances the viral attachment to cellular hMGL, and participates in shielding key neutralization epitopes, which helps the virus evades immune elimination. There are large conformation changes of GP2 during membrane fusion, which enhance the insertion of fusion loop into cellular membrane and facilitate the release of viral nucleocapsid core to cytoplasm.