Profiling Primary Protease Specificity by Peptide Synthesis on a Solid Support

Reverse screening: A greatly simplified primary screening of protease specificity has been achieved by monitoring the fluorescence during the protease-catalyzed coupling of amino acids instead of peptide hydrolysis on a solid support (see picture, AA=amino acid). This approach paves the way for flexible, rapid, high-throughput identification and characterization of proteases without the need for expensively labeled peptide arrays.