Peptide substrate for caspase-3 with 2-aminoacridone as reporting group
2009
Synthesis and properties of a new fluorescent/fluorogenic substrate Ac-DEVD-AMAC for caspase-3 are reported. The substrate is obtained by conventional Fmoc-based solid phase peptide synthesis and its properties are investigated with regard to fluorescence, sensitivity, applicability and kinetic constants. A non-traditional approach to assay the proteases activity using 2-aminoacridone labeled peptides is proposed. This approach utilizes the decrease of fluorescence intensity of a sample as a measure for the enzyme activity.
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