Verucopeptin, a new antitumor antibiotic active against B16 melanoma. I. Taxonomy, production, isolation, physico-chemical properties and biological activity.

A new antitumor antibiotic verucopeptin was isolated from the culture broth of Actinomadura verrucosospora Q886-2. It should potent cytotoxicity and specific in vivo activity against B16 melanoma. Maximum T/C value (162%) was obtained by Q1D x 1 treatment schedule.