A protocol for high-precision FRET experiments at the single molecule level is presented here. Additionally, this methodology can be used to identify three conformational states in the ligand-binding domain of the N-methyl-D-aspartate (NMDA) receptor. Determining precise distances is the first step towards building structural models based on FRET experiments.
Ma, J., Yanez-Orozco, I. S., Rezaei Adariani, S., Dolino, D., Jayaraman, V., Sanabria, H. High Precision FRET at Single-molecule Level for Biomolecule Structure Determination. J. Vis. Exp. (123), e55623, doi:10.3791/55623 (2017).