SARS-CoV Spike (SARS-CoV S)
(SARS-Coronavirus Spike Protein (SARS-CoV S))
Type de proteíne
Recombinant
Activité biologique
Active
Attributs du protein
AA 14-1195
Origine
SARS Coronavirus (SARS-CoV)
Source
HEK-293 Cells
Purification/Conjugué
Cette SARS-CoV Spike protéine est marqué à la His tag.
Séquence
AA 14-1195
Attributs du produit
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.