| abstract |
(57) Abstract: An object of the present invention is to provide a mixture of antimycin A-based compounds containing antimycin A 5 , antimycin A 6 or a physiologically acceptable salt thereof as a main component. SOLUTION: Streptomyces sp. POL- Culturing the 129 strain were purified from the culture solution, the anti relative total mixture containing more than 50 mol% of at least one selected from the group consisting of antimycin A 5 and antimycin A 6 and salts thereof as its total amount A mixture of mycin A-based compounds is obtained as a metabolite of actinomycetes. |