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We have developed an assay using peptide arrays based on phase transition from the glass substrate to the liquid for monitoring quantitative protease activity in real-time. Peptide arrays were fabricated using a bifunctional cross-linker, N-[γ-maleimidobutyryloxy] sulfosuccinimide ester, and a substrate peptide containing two functional groups, cysteine and tetramethyl-6-carboxyrhodamine (TAMRA) on...
Peptide arrays have been widely used for high-throughput determination of protease activities in cells and tissues because specific peptides have high binding affinity for the active site of enzymes. Designing peptide substrate probes for enzyme activity assays have been considered to be important; however, the significance of its reporter tag for detecting enzymatic reactions is relatively underestimated...
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