Here, we present an optimized protocol to rapidly and semiquantitatively measure ligand-receptor interactions in trans in a heterologous cell system using fluorescence microscopy.
Restrepo, S., Schwartz, S. L., Kennedy, M. J., Aoto, J. Measuring Transcellular Interactions through Protein Aggregation in a Heterologous Cell System. J. Vis. Exp. (159), e61237, doi:10.3791/61237 (2020).