G protein-coupled receptors (GPCR) are a complex superfamily of membrane proteins that have a key role in regulating various physiological processes, however, the specific labelling of native GPCRs to monitor their function remains challenging. Here, the authors report a modular click ligand-directed approach to covalently attach fluorescent dyes to endogenous dopamine D1 receptors in live cells.
- Xavier Gómez-Santacana
- Marin Boutonnet
- Amadeu Llebaria