Deficiency in frataxin homologue YFH1 in the yeast Pichia guilliermondii leads to missregulation of iron acquisition and riboflavin biosynthesis and affects sulfate assimilation. - Pynyaha YV; Boretsky YR; Fedorovych DV; Fayura LR; Levkiv AI; Ubiyvovk VM; Protchenko OV; Philpott CC; Sibirny AA (Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine, 2009)