Used in research settings to detect and quantify ubiquitin protein levels in rat tissue samples or biological fluids. This ELISA kit enables scientists to study protein degradation pathways, monitor ubiquitin-proteasome system activity, and investigate roles of ubiquitination in cellular processes such as inflammation, DNA repair, and apoptosis. Commonly applied in neuroscience, cancer research, and toxicology studies where dysregulation of ubiquitin is implicated. Provides a reliable, sensitive method for measuring changes in ubiquitin expression under experimental conditions.