Abstract
Cell surface carbohydrates are important targets for many cell surface receptors, and they mediate crucial biological processes ranging from pathogen infectivity to neutrophil adhesion to drug targeting. A central challenge is to identify relationships between lectin architecture and function that influence the adhesion strength, avidity, and kinetics of receptor-glycan bonds. This information is central both to understanding recognition mechanisms and to developing effective therapeutic agents for drug targeting or for preventing infection. Increasingly, force probes are used to assess structure activity relationships of both the glycan ligands and the receptors that bind them, as well as molecular mechanisms underlying binding and adhesion. This review describes recent advances in the use of different force measurement techniques to quantify receptor-glycan bond parameters, and to identify novel features of molecular mechanisms underlying recognition and adhesion. The examples discussed focus in particular on single bond rupture, surface force measurements, and micropipette manipulation. This review emphasizes the often-unique information obtained from studies of lectin interactions with carbohydrate ligands that complement more common structure determinations and solution binding studies.
Keywords: Adhesin, atomic force microscopy, binding kinetics, catch bond, force measurements, lectin, surface force apparatus, Leukocyte, Carbohydrates, inflammatory cytokines
Current Protein & Peptide Science
Title: Novel Functions and Binding Mechanisms of Carbohydrate-Binding Proteins Determined by Force Measurements
Volume: 12 Issue: 8
Author(s): Deborah E. Leckband
Affiliation:
Keywords: Adhesin, atomic force microscopy, binding kinetics, catch bond, force measurements, lectin, surface force apparatus, Leukocyte, Carbohydrates, inflammatory cytokines
Abstract: Cell surface carbohydrates are important targets for many cell surface receptors, and they mediate crucial biological processes ranging from pathogen infectivity to neutrophil adhesion to drug targeting. A central challenge is to identify relationships between lectin architecture and function that influence the adhesion strength, avidity, and kinetics of receptor-glycan bonds. This information is central both to understanding recognition mechanisms and to developing effective therapeutic agents for drug targeting or for preventing infection. Increasingly, force probes are used to assess structure activity relationships of both the glycan ligands and the receptors that bind them, as well as molecular mechanisms underlying binding and adhesion. This review describes recent advances in the use of different force measurement techniques to quantify receptor-glycan bond parameters, and to identify novel features of molecular mechanisms underlying recognition and adhesion. The examples discussed focus in particular on single bond rupture, surface force measurements, and micropipette manipulation. This review emphasizes the often-unique information obtained from studies of lectin interactions with carbohydrate ligands that complement more common structure determinations and solution binding studies.
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Cite this article as:
E. Leckband Deborah, Novel Functions and Binding Mechanisms of Carbohydrate-Binding Proteins Determined by Force Measurements, Current Protein & Peptide Science 2011; 12 (8) . https://dx.doi.org/10.2174/138920311798841735
DOI https://dx.doi.org/10.2174/138920311798841735 |
Print ISSN 1389-2037 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5550 |
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