This study presents a detailed procedure to perform single-molecule fluorescence resonance energy transfer (smFRET) experiments on G protein-coupled receptors (GPCRs) using site-specific labeling via unnatural amino acid (UAA) incorporation. The protocol provides a step-by-step guide for smFRET sample preparation, experiments, and data analysis.
Banerjee, C., Liauw, B. W., Vafabakhsh, R. Visualizing the Conformational Dynamics of Membrane Receptors Using Single-Molecule FRET. J. Vis. Exp. (186), e64254, doi:10.3791/64254 (2022).