For example, bi-, tri-, and tetra-antennary structures are produced with complex-type branches consisting predominantly of the disaccharide Galβ1,4 GlcNAc capped by a terminal sialic acid residue.
Flu viruses enter cells by attaching to sugars that stick up from their surfaces called sialic acids. Birds have an abundance of a kind of sialic acid called alpha 2,3, but humans primarily have ...
1a,b). Mutation of two amino acid residues (190 and 225) in the hemagglutinin protein that switched the virus' receptor binding preference from human α-2,6 sialic acid to avian α-2,3 sialic acid ...
Sewed into or stapled onto larger molecules, they provide structural support, stability or signaling capability. As many as four molecules of a particular sugar called sialic acid may get snapped into ...