has role has_role has role is conjugate acid of tertiary alpha-hydroxy ketone tetracyclines tetracycline Tetrazyklin Tetracyclin Liquamycin Achromycin tetracycline tetracycline tetracyclinum Deschlorobiomycin Anhydrotetracycline Tsiklomitsin (4S,4aS,5aS,6S,12aS)-4-(dimethylamino)-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydrotetracene-2-carboxamide TETRACYCLINE A broad-spectrum polyketide antibiotic produced by the Streptomyces genus of actinobacteria. (4S,4aS,5aS,12aS)-4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenecarboxamide Tetracycline Abramycin antimicrobial agent antiprotozoal drug antibacterial drug protein synthesis inhibitor tetracycline(1-) Escherichia coli metabolite tetracycline zwitterion