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Wednesday, 12 February, 2014

A Photochromic Agonist for μ-Opioid Receptors

M. Schönberger, and D. Trauner -
Angew. Chem. Int. Edition, doi: 10.1002/anie.201309633, published online: 12 February 2014

Opioid receptors (ORs) are widely distributed in the brain, the spinal cord, and the digestive tract and play an important role in nociception. All known ORs are G-protein-coupled receptors (GPCRs) of family A. Another well-known member of this family, rhodopsin, is activated by light through the cis/trans isomerization of a covalently bound chromophore, retinal. We now show how an OR can be combined with a synthetic azobenzene photoswitch to gain light sensitivity. Our work extends the reach of photopharmacology and outlines a general strategy for converting Family A GPCRs, which account for the majority of drug targets, into photoreceptors.

 

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