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Human coronavirus 229E Spike glycoprotein (His & Myc)

产品编号 TMPH-01140

Human coronavirus 229E Spike glycoprotein (His & Myc) is expressed in E. coli.

Human coronavirus 229E Spike glycoprotein (His & Myc)

Human coronavirus 229E Spike glycoprotein (His & Myc)

产品编号 TMPH-01140
Human coronavirus 229E Spike glycoprotein (His & Myc) is expressed in E. coli.
规格价格库存数量
20 μg
¥ 1,320
20日内发货
100 μg
¥ 2,680
20日内发货
1 mg
¥ 11,700
20日内发货
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实验操作小课堂
常见问题解答
产品的溶解度是多少?
建议您先查询TargetMol官网、陶术官网,看该抑制剂的产品介绍,找到溶解度信息。如果没有相应信息,建议联系技术对该化合物的溶解度进行测定。
动物不能耐受 DMSO,给药时 DMSO量应该如何控制?
对于普通的老鼠,DMSO 的浓度应控制在 10% 以下,对于裸鼠、转基因小鼠、耐受性弱的老鼠等,DMSO 浓度需控制在2%以下。对于首次操作的抑制剂,建议先做溶剂阴性对照,确认溶解对动物无非特异性影响。
溶解度中写的“< 1 mg/mL refers to the slightly soluble or insoluble ”是什么意思?
这句话指的是,如果溶解度 < 1 mg/mL,那我们就认为它是微溶或不溶的,这是针对写的“DMSO:Insoluble”或“DMSO:slightly soluble”这类化合物的。
超声一般需要多久?
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。
如果低于说明书给出的最高溶解度情况下,产品仍未溶解怎么办?
建议您使用一些辅助溶解方法,如水浴加热至 45℃ 或用超声震荡,加速粉末溶解。
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产品信息

生物活性
Activity has not been tested. 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
Human coronavirus 229E Spike glycoprotein (His & Myc) is expressed in E. coli.
种属
HCoV-229E
表达系统
E. coli
标签N-10xHis, C-Myc
蛋白编号P15423
别名
Spike glycoprotein,S glycoprotein,Peplomer protein,E2
氨基酸序列
DVLQENQKILAASFNKAMTNIVDAFTGVNDAITQTSQALQTVATALNKIQDVVNQQGNSLNHLTSQLRQNFQAISSSIQAIYDRLDTIQ
蛋白构建
785-873 aa
蛋白纯度
> 85% as determined by SDS-PAGE.
分子量17.2 kDa (predicted)
内毒素< 1.0 EU/μg of the protein as determined by the LAL method.
缓冲液If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
复溶方法
Reconstitute the lyophilized protein in sterile deionized 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
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. Solutions are shipping with dry ice.
研究背景
S1 region attaches the virion to the cell membrane by interacting with host ANPEP/aminopeptidase N, initiating the infection. Binding to the receptor probably induces conformational changes in the S glycoprotein unmasking the fusion peptide of S2 region and activating membranes fusion. S2 region belongs to the class I viral fusion protein. Under the current model, the protein has at least 3 conformational states: pre-fusion native state, pre-hairpin intermediate state, and post-fusion hairpin state. During viral and target cell membrane fusion, the coiled coil regions (heptad repeats) regions assume a trimer-of-hairpins structure, positioning the fusion peptide in close proximity to the C-terminal region of the ectodomain. The formation of this structure appears to drive apposition and subsequent fusion of viral and target cell membranes.

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