L-glutamic dehydrogenase from Proteus species is widely used in biochemical research and diagnostic applications. It plays a crucial role in enzymatic assays, particularly in the measurement of glutamate levels in biological samples. This enzyme is employed in clinical diagnostics to assess liver function and detect metabolic disorders, as it is involved in the conversion of glutamate to α-ketoglutarate, a key step in amino acid metabolism. Additionally, it is utilized in industrial biotechnology for the production of amino acids and other bioactive compounds. Its specificity and efficiency make it a valuable tool in enzyme kinetics studies and metabolic pathway analysis.