Question

What do you mean by spike proteins?​

Answer 1

Answer:



All reagents 

All reagents Spike Protein / S Protein

All reagents Spike Protein / S ProteinSpike Protein Definition

All reagents Spike Protein / S ProteinSpike Protein DefinitionThe spike protein (S protein) is a large type I transmembrane protein ranging from 1,160 amino acids for avian infectious bronchitis virus (IBV) and up to 1,400 amino acids for feline coronavirus (FCoV) . In addition, this protein is highly glycosylated as it contains 21 to 35 N-glycosylation sites. Spike proteins assemble into trimers on the virion surface to form the distinctive "corona", or crown-like appearance. The ectodomain of all CoV spike proteins share the same organization in two domains: a N-terminal domain named S1 that is responsible for receptor binding and a C-terminal S2 domain responsible for fusion 

Answer 2

• The coronavirus spike protein is a class I fusion protein. The formation of an α-helical coiled-coil structure is characteristic of this class of fusion protein, which contain in their C-terminal part regions predicted to have an α-helical secondary structure and to form coiled-coils.