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Multivalent ligand presentation as a central concept to study intricate carbohydrate-protein interactions

Jayaraman, Narayanaswamy (2009) Multivalent ligand presentation as a central concept to study intricate carbohydrate-protein interactions. In: Chemical society reviews, 38 (12). pp. 3463-3483.

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Abstract

Studying the weak binding affinities between carbohydrates and proteins has been a central theme in sustained efforts to uncover intricate details of this class of biomolecular interaction. The amphiphilic nature of most carbohydrates, the competing nature of the surrounding water molecules to a given protein receptor site and the receptor binding site characteristics led to the realization that carbohydrates are required to exert favorable interactions, primarily through clustering of the ligands. The clustering of sugar ligands has been augmented using many different innovative molecular scaffolds. The synthesis of clustered ligands also facilitates fine-tuning of the spatial and topological proximities between the ligands, so as to allow the identification of optimal molecular features for significant binding affinity enhancements. The kinetic and thermodynamic parameters have been delineated in many instances, thereby allowing an ability to correlate the multivalent presentation and the observed ligand-receptor interaction profiles. This critical review presents various multivalent ligands, synthetic and semisynthetic, and mechanisms by which the weak binding affinities are overcome, and the ligand-receptor complexation leads to significantly enhanced binding affinities (157 references).

Item Type: Journal Article
Additional Information: copyright of this article belongs to Royal soc chemistry.
Keywords: Surface-plasmon resonance; isothermal titration calorimetry; dioclea-grandiflora lectin; self-assembled monolayers; solid-phase synthesis; lewis-x ligands; concanavalin-a; cholera-toxin; high-affinity; gold nanoparticles.
Department/Centre: Division of Chemical Sciences > Organic Chemistry
Date Deposited: 29 Dec 2009 11:56
Last Modified: 19 Sep 2010 05:53
URI: http://eprints.iisc.ernet.in/id/eprint/25169

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