: By stopping the electron flow, it prevents the formation of the proton gradient necessary for ATP production .
is a potent secondary metabolite produced by various species of Streptomyces bacteria . Originally discovered over 70 years ago for its powerful fungicidal properties, it has since become a cornerstone tool in biochemistry for studying how cells generate energy. The Mechanism of Action antimycin
Antimycin A is a classic inhibitor of . It specifically targets the mitochondrial electron transport chain (ETC) by binding to the Qi site of cytochrome c reductase (Complex III). This binding blocks the transfer of electrons from ubiquinol to cytochrome c, effectively "clogging" the cellular power plant. : By stopping the electron flow, it prevents