ArticleAngewandte Chemie (International ed. in English)2024
Synthetic Sialosides Terminated with 8-N-Substituted Sialic Acid as Selective Substrates for Sialidases from Bacteria and Influenza Viruses.
Article in Angewandte Chemie (International ed. in English), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Acinetobacter baumannii α2-6-Legionaminyltransferase-Catalyzed Synthesis Reveals Legionaminic Acid Form Selectivity by Antibodies in Pooled Human IgGs.Angewandte Chemie (International ed. in English) · 2026Article
- Development of mumps virus-specific sialidase imaging probes through chemical modifications of sialic acid.Scientific reports · 2025Article
- Catch, Cut, or Block? Versatile 4-N-Derivatized Sialyl Glycosides for Influenza Virus Neuraminidase Detection and Purification.Angewandte Chemie (International ed. in English) · 2025Article
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Authors and funding
7 authors.
Funding
Abstract
Sialosides containing C8-modified sialic acids are challenging synthetic targets but potentially useful probes for diagnostic substrate profiling of sialidases and elucidating the binding specificity of sialic acid-interacting proteins. Here, we demonstrate efficient chemoenzymatic methods for synthesizing para-nitrophenol-tagged α2-3- and α2-6-linked sialyl galactosides containing C8-acetamido, C8-azido, or C8-amino derivatized N-acetylneuraminic acid (Neu5Ac). High-throughput substrate specificity studies showed that the C8-modification of sialic acid significantly changes its recognition by sialidases from humans, various bacteria, and different influenza A and B viruses. Sialosides carrying Neu5Ac with a C8-azido modification were generally well tolerated by all the sialidases we tested, whereas sialosides containing C8-acetamido-modified Neu5Ac were only cleaved by selective bacterial sialidases. In contrast, sialosides with C8-amino-modified Neu5Ac were cleaved by a combination of selective bacterial and influenza A virus sialidases. These results indicate that sialosides terminated with a C8-amino or C8-acetamido-modified sialic acid can be used with other sialosides for diagnostic profiling of disease-causing sialidase-producing pathogens.
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