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Human beta1-coronavirus (β1CoV) OC43 emerged relatively recently through a single zoonotic introduction. Like related animal β1CoVs, OC43 uses 9-O-acetylated sialic acid as receptor determinant. β1CoV receptor binding is typically controlled by attachment/fusion spike protein S and receptor-binding/receptor-destroying hemagglutinin-esterase protein HE. We show that following OC43’s introduction into...
Sialic acids (Sias), 9-carbon-backbone sugars, are among the most complex and versatile molecules of life. As terminal residues of glycans on proteins and lipids, Sias are key elements of glycotopes of both cellular and microbial lectins and thus act as important molecular tags in cell recognition and signaling events. Their functions in such interactions can be regulated by post-synthetic modifications,...
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