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Synthesis and characterization of photoaffinity probes that target the 5-HT3 receptor



Synthesis and characterization of photoaffinity probes that target the 5-HT3 receptor



Chimia 68(4): 239-242



The 5-HT3 receptor is one of several ion channels responsible for the transmission of nerve impulses in the peripheral and central nervous systems. Until now, it has been difficult to characterize transmembrane receptors with classical structural biology approaches like X-ray crystallography. The use of photoaffinity probes is an alternative approach to identify regions in the protein where small molecules bind. To this end, we present two photoaffinity probes based on granisetron, a well known antagonist of the 5-HT3 receptor. These new probes show nanomolar binding affinity for the orthosteric binding site. In addition, we investigated their reactivity using irradiation experiments.

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Accession: 056068244

Download citation: RISBibTeXText

PMID: 24983606

DOI: 10.2533/chimia.2014.239


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