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EphA3 Protein, Human, Recombinant (His)

产品编号 TMPY-03275EphA3 Protein, Human, Recombinant (His)

EphA3 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 60.3 kDa and the accession number is A0A140VJJ0.

EphA3 Protein, Human, Recombinant (His)

EphA3 Protein, Human, Recombinant (His)

产品编号 TMPY-03275EphA3 Protein, Human, Recombinant (His)
EphA3 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 60.3 kDa and the accession number is A0A140VJJ0.
规格价格库存数量
100 μg
¥ 3,820
5日内发货
1 mg
¥ 24,900
5日内发货
大包装 & 定制
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常见问题解答
如何将冻干的重组蛋白配置为储备液?
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。
为什么某些重组蛋白溶液中还需要添加载体蛋白?
载体蛋白通常被用于提高蛋白的稳定性,防止蛋白在冷冻或解冻过程中粘附在管壁上。塑料管对蛋白有一定的吸附能力,这可能导致蛋白和管壁之间难以分离,导致溶液中蛋白的实际浓度下降,从而影响其活性。为减少这种损失,在长期保存重组蛋白 产品之前,建议添加常用的载体蛋白溶液,例如0.1% BSA(牛血清白蛋白)、5% HSA(人血清白蛋白)、10% FBS(胎牛血清)或 5% 海藻糖等。如果重组蛋白的浓度较低,强烈建议添加适量的载体蛋白。
为什么重组蛋白的体积和质量与预期不符?
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。
重组蛋白产品该如何保存?
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。
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产品信息

生物活性
Measured by its binding ability in a functional ELISA. Immobilized human EPHA3-His at 10 μg/ml (100 μl/well) can bind human EphrinA5-Fc , The EC50 of human EphrinA5-Fc is 6.2-14.6 ng/ml.
产品描述
EphA3 Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 60.3 kDa and the accession number is A0A140VJJ0.
种属
Human
表达系统
HEK293 Cells
标签C-His
蛋白编号P29320
别名
TYRO4,HEK4,HEK,ETK1,ETK,EPH receptor A3,EK4
蛋白构建
A DNA sequence encoding the human EPHA3 (NP_005224.2) (Met1-Gln541) was expressed with a polyhistidine tag at the C-terminus. Predicted N terminal: Glu 21
蛋白纯度
> 95 % as determined by SDS-PAGE
分子量60.3 kDa (predicted); 65-70 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
EPHA3 gene belongs to the ephrin receptor subfamily of the protein-tyrosine kinase family. EPH and EPH-related receptors have been implicated in mediating developmental events, particularly in the nervous system. The ephrin receptors are divided into 2 groups based on the similarity of their extracellular domain sequences and their affinities for binding ephrin-A and ephrin-B ligands. EPHA3 gene encodes a protein that binds ephrin-A ligands. EPHA3 is involved in the retinotectal mapping of neurons. It may also control the segregation but not the guidance of motor and sensory axons during neuromuscular circuit development.Cancer ImmunotherapyImmune CheckpointImmunotherapyTargeted Therapy

参考文献

SCI 文献

计算器

  • 复溶 计算器
  • 重组蛋白稀释 计算器
  • 比活力 计算器

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