Tsvetkov, Yury E. Burg-Roderfeld, Monika Loers, Gabriele Ardá, Ana Sukhova, Elena V. Khatuntseva, Elena A. Grachev, Alexey A. Chizhov, Alexander O. Siebert, Hans-Christian Schachner, Melitta Jiménez-Barbero, Jesús Nifantiev, Nikolay E. Synthesis and Molecular Recognition Studies of the HNK-1 Trisaccharide and Related Oligosaccharides. The Specificity of Monoclonal Anti-HNK-1 Antibodies as Assessed by Surface Plasmon Resonance and STD NMR The human natural killer cell carbohydrate, HNK-1, plays function-conducive roles in peripheral nerve regeneration and synaptic plasticity. It is also the target of autoantibodies in polyneuropathies. It is thus important to synthesize structurally related HNK-1 carbohydrates for optimizing its function-conducive roles, and for diagnosis and neutralization of autoantibodies in the fatal Guillain–Barré syndrome. As a first step toward these goals, we have synthesized several HNK-1 carbohydrate derivatives to assess the specificity of monoclonal HNK-1 antibodies from rodents: 2-aminoethyl glycosides of selectively O-sulfated trisaccharide corresponding to the HNK-1 antigen, its nonsulfated analogue, and modified structures containing 3-<i>O</i>-fucosyl or 6-<i>O</i>-sulfo substituents in the <i>N</i>-acetylglucosamine residues. These were converted, together with several related oligosaccharides, into biotin-tagged probes to analyze the precise carbohydrate specificity of two anti-HNK-1 antibodies by surface plasmon resonance that revealed a crucial role of the glucuronic acid in antibody binding. The contribution of the different oligosaccharide moieties in the interaction was shown by saturation transfer difference (STD) NMR of the complex consisting of the HNK-1 pentasaccharide and the HNK-1 412 antibody. STD NMRThe;carbohydrate derivatives;Molecular Recognition Studies;carbohydrate specificity;Related Oligosaccharides;synaptic plasticity;HNK;saturation transfer difference;surface plasmon resonance;nerve regeneration;Surface Plasmon Resonance;killer cell carbohydrate;glucuronic acid;role;antibody binding;nonsulfated analogue;oligosaccharide moieties;412 antibody 2012-01-11
    https://acs.figshare.com/articles/journal_contribution/Synthesis_and_Molecular_Recognition_Studies_of_the_HNK_1_Trisaccharide_and_Related_Oligosaccharides_The_Specificity_of_Monoclonal_Anti_HNK_1_Antibodies_as_Assessed_by_Surface_Plasmon_Resonance_and_STD_NMR/2562484
10.1021/ja2083015.s002