Cathepsin C, derived from bovine spleen, is widely utilized in biochemical research for its role in protein degradation and processing. It is particularly valuable in studies involving the activation of pro-enzymes and pro-inflammatory mediators, as it cleaves dipeptides from the N-terminus of proteins. This enzyme is instrumental in understanding immune system functions, especially in the context of neutrophil serine proteases. Additionally, it is employed in the development of inhibitors for therapeutic applications, targeting conditions like chronic inflammatory diseases and certain genetic disorders. Its specificity and activity make it a crucial tool in proteomics and drug discovery research.