Glutamic acid dehydrogenase plays a crucial role in metabolic processes, particularly in amino acid metabolism. It is widely used in biochemical research to study enzyme kinetics and mechanisms, aiding in understanding cellular energy production and nitrogen balance. In industrial applications, it is employed in the production of amino acids and other biochemical compounds, serving as a catalyst in fermentation processes. Additionally, it is utilized in diagnostic kits for detecting and measuring enzyme activity in clinical samples, helping in the diagnosis of metabolic disorders. Its application in biotechnology also extends to genetic engineering and protein synthesis studies.