Used in research settings to quantify levels of ubiquitin-specific peptidase 2a (USP2a) in human biological samples, this assay helps study the regulation of protein degradation pathways. It is particularly useful in cancer research, where USP2a plays a role in stabilizing oncoproteins and tumor suppressors. The kit enables high-throughput screening of potential therapeutic agents targeting deubiquitinating enzymes. It also supports investigations into inflammatory diseases, neurodegenerative disorders, and viral infections where ubiquitin signaling is disrupted. Results are typically used in academic, pharmaceutical, and clinical laboratories to better understand disease mechanisms and evaluate drug effects.