Background：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.
仕様
サイズ：100ug
Source：SARS-CoV-2 S1 protein NTD, His Tag (S1D-C52Hc) is expressed from human 293 cells (HEK293). It contains AA Ser 13 - Leu 303 (Accession # QHD43416.1). The L18F/D80A/D215G/LAL242-244del/R246I mutations were identified on the spike protein N-terminal domain (NTD) in the SARS-CoV-2 Beta variant (Pango lineage: B.1.351; other names: 20H/501Y.V2).
Molecule：Spike NTD
Synonyms：S1 protein NTD,Spike protein S1 NTD,BetaCoV S1-NTD
Species：SARS-CoV-2
Tag：His Tag
Expression Systems：HEK293
Expression Rigeion：Ser 13 - Leu 303
Conjugate：Unconjugated
Accession：QHD43416.1
Molecular Weight：34.5 kDa
Characteristics：This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 34.5 kDa. The protein migrates as 50-65 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
Endotoxin Level：Less than 1.0 EU per ug by the LAL method.
