Glycan-Mediated, Ligand-Controlled Click Chemistry for Drug-Target Identification.
2016
Membrane-bound proteins are important pharmaceutical drug targets, yet few strategies exist for the identification of small-molecule-targeted membrane proteins in live-cell systems. By exploiting metabolic glycan engineering of cell membrane proteins, we have developed an in situ glycan-mediated ligand-controlled click ("GLiCo-Click") chemistry methodology that enables the attachment of small-molecule chemical probes to their receptor protein through glycans on live cells. In addition to enabling receptor enrichment from cell lysates, this strategy can be used to demonstrate target receptor engagement and enables the molecular characterization of receptors.
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