重组人冠状病毒(HCoV-HKU1)(isolate N1)Spike/S1蛋白(S1 Subunit,His标签)（产品说明）  
蛋白名称：Coronavirus spike蛋白, Coronavirus spike protein  
蛋白构建：A DNA sequence encoding the human coronavirus HKU1 (isolate N1) (HCoV-HKU1) spike protein (S1 Subunit) (YP_173238.1) (Met 1-Arg 760) was expressed with a polyhistidine tag at the C-terminus.  
表达宿主：HEK293 Cells  
蛋白纯度：> 90 % as determined by SDS-PAGE  
蛋白活性：0  
蛋白内毒素：< 1.0 EU per μg of the protein as determined by the LAL method  
预测N端：Gly 16  
蛋白分子量：The recombinant human coronavirus HKU1 (isolate N1) (HCoV-HKU1) spike protein (S1 Subunit, His Tag) consists of 756 amino acids with a predicted molecular mass of 85.8 kDa. As a result of high glycosylation, the apparent molecular mass of the recombinant protein is approximately 130-140 kDa in SDS-PAGE under reducing conditions.  
蛋白NP号：YP_173238.1  
蛋白氨基酸序列：Met1-Arg760  
蛋白标签：C-His  
蛋白保存条件：Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.