929903-87-7

Ac-RLR-AMC (Ac-Arg-Leu-Arg-AMC) is a fluorogenic substrate for the 26S proteasome (Ex/Em: 380/440-460 nm). AMC is released upon cleavage, and its fluorescence can be used to quantify the trypsin-like activity of 26S proteasomes[1].

Fluorogenic tri-peptide substrate for measuring the trypsin-like peptidase activity of the 20S proteasome. It is cleaved exclusively at the amide R-AMC bond to release fluorescent product. Shows low Km and high specific activity. Excitation: 380nm. Emission: 460nm. This substrate is useful for inhibitor screening and kinetic analysis.

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[1] Chang TL. Inhibitory effect of flavonoids on 26S proteasome activity. J Agric Food Chem. 2009 Oct 28;57(20):9706-15. DOI:10.1021/jf9017492