Protactin, a new antibiotic metabolite and a possible precursor of the actinomycins.

Protactin, a new antibiotic metabolite and a possible precursor of the actinomycins. Protactin, a new antibiotic metabolite and a possible precursor of the actinomycins. Prothracarcin, a novel antitumor antibiotic. Antibacterial and Cytotoxic Actinomycins Y₆–Y₉ and Zp from <i>Streptomyces</i> sp. Strain Gö-GS12 Antibacterial and Cytotoxic Actinomycins Y₆–Y₉ and Zp from <i>Streptomyces</i> sp. Strain Gö-GS12 STUDIES ON TUBERACTINOMYCIN. II Tetrazomine, a new antibiotic produced by an actinomycete strain. Taxonomy, fermentation, isolation and characterization. Probing functional diversity in pactamycin toward antibiotic, antitumor, and antiprotozoal activity Actinomycins with Altered Threonine Units in the β-Peptidolactone Studies concerning the antibiotic actinonin. Part I. The constitution of actinonin. A natural hydroxamic acid with antibiotic activity