Used to detect and quantify deubiquitinating enzyme (DUB) activity in human biological samples such as cell lysates or tissue extracts. This kit enables researchers to study the regulation of ubiquitin-dependent pathways involved in protein degradation, DNA repair, inflammation, and cancer progression. It is commonly applied in drug discovery and development to screen inhibitors or activators of DUB enzymes, supporting the identification of potential therapeutic targets. The assay format allows high-throughput analysis, making it suitable for both basic research and clinical investigation into diseases linked to ubiquitin signaling dysfunction.