Product Overview
A DNA sequence encoding the human coronavirus HKU1 (isolate N5) (HCoV-HKU1) spike protein (S1+S2 ECD) (Q0ZME7.1) (Met1-Pro1295) was expressed with a polyhistidine tag at the C-terminus.
Predicted N terminal
Ala 13
Molecular Weight
The recombinant human coronavirus HKU1 (isolate N5) (HCoV-HKU1) spike protein (S1+S2 ECD, His Tag) consists of 1294 amino acids and predicts a molecular mass of 144.4 kDa.
Endotoxin
< 1.0 EU per μg protein as determined by the LAL method.
Alternative Names
HCoV HKU1; HCoV; HKU1; CoV; CoV S Protein
Purity
> 75 % as determined by SDS-PAGE.
Buffer
Lyophilized from sterile 20 mM PB, 300 mM NaCl, 10 % glycerol, pH 7.5
Storage
Store it under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Introduction
The spike (S) glycoprotein of coronaviruses contains protrusions that will only bind to certain receptors on the host cell. Known receptors bind S1 are ACE2, angiotensin-converting enzyme 2; DPP4, dipeptidyl peptidase-4; APN, aminopeptidase N; CEACAM, carcinoembryonic antigen-related cell adhesion molecule 1; Sia, sialic acid; O-ac Sia, O-acetylated sialic acid. The spike is essential for both host specificity and viral infectivity. The term 'peplomer' is typically used to refer to a grouping of heterologous proteins on the virus surface that function together. The spike (S) glycoprotein of coronaviruses is known to be essential in the binding of the virus to the host cell at the advent of the infection process.
Keywords
HCoV HKU1; HCoV; HKU1; CoV; CoV S Protein
Citations
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