SARS-CoV Spike (SARS-CoV S)
(SARS-Coronavirus Spike Protein (SARS-CoV S))
蛋白类型
Recombinant
生物活性
Active
产品特性
AA 14-1195
宿主
SARS Coronavirus (SARS-CoV)
资源
HEK-293 Cells
标记
This SARS-CoV Spike protein is labelled with His tag.
序列
AA 14-1195
产品特性
SARS S protein (R667A, K968P, V969P), His Tag is expressed from human 293 cells (HEK293). It contains AA Ser 14 - Pro 1195 (Accession # AAP13567.1(R667A, K968P, V969P). The recombinant protein is expressed with T4 fibritin trimerization motif and a polyhistidine tag at the C-terminus. Proline substitutions (K968P, V969P) and alanine substitutions (R667A) are introduced to stabilize the trimeric prefusion state of SARS-CoV S protein and abolish the furin cleavage site, respectively.
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.