Fig. 6: Toxoplasma expresses MDH-FAD in the mitochondrion.

a Immunofluorescence assays were performed on the 10ĆHA-tagged strain to determine the localization of MDH-FAD. HSP60 was used as a marker specific to the mitochondrion for colocalization. b Toxoplasma MDH-FAD cDNA was amplified and cloned into the pRS416. The parental (BY4741) and ScĪmdh1 strains transformed with the empty plasmid (pRS416) or construct (pRS416-MDH-FAD) were characterized on medium with glucose or glycerin as a sole carbon source by serial dilution assay. The plates were grown at 30ā°C for 3 days. c The TgMDH-FAD expressing mini gene was reintroduced into the chromosome of the ScĪmdh1. Growth of parental (BY4741), ScĪmdh1 and ScĪmdh1-TgMDH-FAD strains was tested either on glucose (YPD, fermentable carbon source) or on glycerol (YPG, non-fermentable carbon source) for 3 days at 30ā°C.