Pikromycin polyketide synthase component PikAII (Pikromycin PKS component PikAII) (EC 2.3.1.239) (EC 2.3.1.240) (Narbonolide/10-deoxymethynolide synthase PikA2, modules 3 and 4) (Narbonolide/10-deoxymethynolide synthase PikAII) (Type I modular polyketide synthase PikAII) (PKS)