Recombinant SARS-CoV-2 NSP8 Protein (His Tag)
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- 表达系统： E.coli
- 蛋白编码： YP_009725304.1
| 别称 |
SARS-CoV 2 nsp8
|
| 表达系统 |
E.coli
|
| 序列 |
Ala1-Gln198
|
| 蛋白编码 |
YP_009725304.1
|
| 种属 |
SARS-CoV-2
|
| 计算分子量 |
25 kDa
|
| 表观分子量 |
25 kDa
|
| 标签 |
C-His
|
| 生物活性 |
Not validated for activity
|
| 纯度 |
> 85 % as determined by reducing SDS-PAGE.
|
| 内毒素 |
< 1.0 EU per μg of the protein as determined by the LAL method.
|
| 保存条件 |
Store at < -20°C, stable for 6 months. Please minimize freeze-thaw cycles.
|
| 运输条件 |
This product is provided as liquid. It is shipped at frozen temperature with blue ice/gel packs. Upon receipt, store it immediately at < - 20°C.
|
| 制剂 |
Supplied as a 0.2 μm filtered solution of 20mM Tris-HCl, 150mM NaCl, 10% Glycerol, pH 8.5.
|
| 复溶方法 |
Not Applicable
|
| 背景 |
Cleavage by the viral main protease, 3CLpro results in generating the nsp8 protein, The nsp8 protein has been shown to associate with several other nsps and to colocalize with these nsps in cytoplasmic complexes that are important for viral RNA synthesis. It forms a hexadecamer with nsp7 (8 subunits of each) that may participate in viral replication by acting as a primase. Alternatively, may synthesize substantially longer products than oligonucleotide primers. Nsp8 was shown to have RNA-dependent RNA polymerase (RdRp) activity that could be involved in producing primers utilized by nsp12 which is normally accepted to be the RdRp for SARS-CoV.
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Q1:重组蛋白有活性吗？可以做活性检测吗？
活性说明的见说明书bio-activity部分；如果说明书显示没有生物活性或则显示生物活性检测中，则说明这个蛋白没有生物活性数据，需要客户自己检测。
Q2:重组蛋白是否测序验证过？
在售重组蛋白默认不做测序分析/验证。
Q3:蛋白的运输条件是什么？
我们的蛋白有液体和冻干粉2种形式，一般来说冻干粉可以用冰袋、蓝冰、干冰运输；液体可以用蓝冰或干冰运输。
Q4:蛋白是通过什么方式纯化的？
一般通过纯化标签进行亲和纯化，常规有镍柱/His Tag、protein AG/Fc tag、标签抗体凝胶等。
Q5:蛋白可以用于细胞培养/注射小鼠吗？
内毒素含量小于0.1 ng/μg (1 EU/μg)的蛋白都可以用于细胞培养/注射小鼠。
Q6:蛋白发货形式可以是冻干粉吗？可以发液体吗？
默认按照说明书标注的形式发货；如果有特殊需求，需要根据蛋白情况确定。原则上，冻干粉蛋白可以发液体形式，液体蛋白不能发冻干粉形式。
Q7:蛋白Buffer里是否含有denaturants（变性剂）？
我们在售重组蛋白一般不含变性剂，具体见说明书的formulation信息。常见变性剂有：尿素和盐酸胍。
Q8:无标签蛋白纯化方式？
蛋白的纯化方式一般通过标签进行亲和纯化，无标签的蛋白是在纯化后进行了标签切除。
Q9:AF蛋白可以提供吗？
在售的重组蛋白都属于Animal component free protein。在售重组蛋白里不含任何直接来源与动物和人的制品：比如血清，血浆，全血，BSA，OVA等。
实验操作视频
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