NCIt definition : An enediyne antineoplastic antibiotic hybrid containing an anthranilate moiety. Esperamicin
A1 is isolated from the bacterium Actinomadura verrucosospora. The anthranilate component
of esperamicin A1 intercalates DNA and the benzene diradical intermediate of the enediyne
core binds to the minor groove of DNA, resulting in single- and double-stranded breaks
in DNA and apoptosis. (NCI04);