Fig. 4From: Heterologous reconstitution of the biosynthesis pathway for 4-demethyl-premithramycinone, the aglycon of antitumor polyketide mithramycinGenetic organization of mtm biosynthesis gene cassettes used to investigate 4-demethyl-premithramycinone biosynthesis. pE*, promoter for the erythromycin resistance gene (ermEp*); 1, SEK15; 2, 2-hydroxy nogalonic acid; 3 to 5, unknown compounds; 6, 4-demethyl-premithramycinoneBack to article page