Furin Inhibitor I is primarily used in biochemical research to study the role of furin, a protease enzyme involved in the processing of various precursor proteins. It is particularly valuable in investigating the activation mechanisms of viral glycoproteins, such as those in influenza and coronaviruses, which rely on furin for their pathogenicity. By inhibiting furin, researchers can better understand viral entry and replication processes, aiding in the development of antiviral therapies. Additionally, this inhibitor is employed in cancer research to explore the role of furin in tumor progression and metastasis, as furin is known to activate growth factors and other proteins critical to cancer development. Its application extends to studying cardiovascular diseases, where furin plays a role in the maturation of proteins involved in blood pressure regulation and vascular remodeling. Overall, Furin Inhibitor I serves as a crucial tool in elucidating the biological functions of furin across various disease contexts.