Abz-Gly-Ile-Val-Arg-Ala-Lys(Dnp)-OH

Abz-GIVRAK(Dnp) is the most efficient substrate for cathepsin B and is highly selective for this enzyme among lysosomal cysteine proteases. After Abz-GIVRAK(Dnp) is hydrolyzed, aminoacylbenziminosulfosuccinic acid (Abz-SAS) is released, and dinitrobenzoyl (Dnp) is also released. The product of this hydrolysis reaction, Abz-SAS, is fluorescent under ultraviolet light and can emit a fluorescent signal[1].

Research Areas >> Others

Signaling Pathways >> Others >> Others

[1]. Cotrin SS, et, al. Positional-scanning combinatorial libraries of fluorescence resonance energy transfer peptides to define substrate specificity of carboxydipeptidases: assays with human cathepsin B. Anal Biochem. 2004 Dec 15;335(2):244-52.