Biomimetic Tweezers for N-Glycans: Selective Recognition of the Core GlcNAc(2) Disaccharide of the Sialylglycopeptide SGP

In recent years, glycomics have shown how pervasive the role of carbohydrates in biological systems is and how chemical tools are essential to investigate glycan function and modulate carbohydrate-mediated processes. Biomimetic receptors for carbohydrates can carry out this task but, although signif...

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Detalhes bibliográficos
Autores: Milanesi, Francesco, Unione, Luca, Ardá, Ana, Nativi, Cristina, Jiménez Barbero, Jesús, Roelens, Stefano, Francesconi, Oscar
Tipo de documento: artigo
Data de publicação:2023
País:España
Recursos:Universidad del País Vasco
Repositório:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/61055
Acesso em linha:http://hdl.handle.net/10810/61055
Access Level:Acceso aberto
Palavra-chave:biomimetic artificial receptors
carbohydrates
chitobiose
glycan
molecular recognition
Descrição
Resumo:In recent years, glycomics have shown how pervasive the role of carbohydrates in biological systems is and how chemical tools are essential to investigate glycan function and modulate carbohydrate-mediated processes. Biomimetic receptors for carbohydrates can carry out this task but, although significant affinities and selectivities toward simple saccharides have been achieved, targeting complex glycoconjugates remains a goal yet unattained. In this work we report the unprecedented recognition of a complex biantennary sialylglycopeptide (SGP) by a tweezers-shaped biomimetic receptor, which selectively binds to the core GlcNAc2 disaccharide of the N-glycan with an affinity of 170 μM. Because of the simple structure and the remarkable binding ability, this biomimetic receptor can represent a versatile tool for glycoscience, opening the way to useful applications.