We present a fluorogenic peptide cleavage assay that allows a rapid screening of the proteolytic activity of proteases on peptides representing the cleavage site of viral fusion peptides. This method can also be used on any other amino acid motif within a protein sequence to test for the protease activity.
Jaimes, J. A., Millet, J. K., Goldstein, M. E., Whittaker, G. R., Straus, M. R. A Fluorogenic Peptide Cleavage Assay to Screen for Proteolytic Activity: Applications for coronavirus spike protein activation. J. Vis. Exp. (143), e58892, doi:10.3791/58892 (2019).