HCoV-HKU1(isolate N5) S1 Recombinant Protein

This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 85.7 kDa. The protein migrates as 110-130 kDa under reducing (R) condition (SDS-PAGE) due to Glycosylation.

Lyophilized Protein should be stored at -20˚ C or lower for long term storage. Upon reconstitution, working aliquots should be stored at -20˚ C or -70˚ C. Avoid repeated freeze-thaw cycles.

85.7 kDa

It's been reported that Coronavirus can infect the human respiratory epithelial cells through interaction with the human ACE2 receptor. The spike protein is a large type I transmembrane protein containing two subunits, S1 and S2. S1 mainly contains a receptor binding domain (RBD), which is responsible for recognizing the cell surface receptor. S2 contains basic elements needed for the membrane fusion.The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity.

Wan Y, et al. J Virol. 2020. pii: JVI.00127-20.

Chang CY, et al. AMB Express. 2020. 10(1):20.

Ala 13 - Arg 756