Leucine Aminopeptidase, microsomal, from porcine kidney, is widely utilized in biochemical research and diagnostic applications. It plays a crucial role in protein metabolism by catalyzing the removal of leucine residues from the N-terminus of peptides and proteins. This enzyme is commonly employed in laboratory settings to study peptide degradation mechanisms and to analyze protein structures. Additionally, it is used in diagnostic kits to measure aminopeptidase activity, which can serve as a biomarker for certain diseases, including liver and kidney disorders. Its specificity for leucine makes it a valuable tool in enzymatic assays and proteomics research, aiding in the identification and characterization of proteins.