AG Scientific Antimycin A<Sub>4</Sub>, 0.5 mg

Antimycin A₄ is the most polar of the major components of the antimycin complex, first isolated in 1958 from Streptomyces blastimyceticus and co-produced with antimycin A₃. Like all antimycins, antimycin A₄ is a potent inhibitor of respiration by inhibiting the oxidation of ubiquinol to ubiquinone.
 

Antimycin A₄ exhibits broad biological activity as an antifungal, anthelmintic, insecticidal, antiviral and antitumor active. Lack of availability of the individual antimycin components has hindered greater understanding of the common and unique molecular targets of the components of the antimycin complex.