EHI_176590-HA expression in KU27 (A) Immuno-detection of EHI_176590-HA ectopically expressed in strain KU27. Total cell lysates, from mock-transfected and EHI_176590-HA-expressing strain KU27 trophozoites, were analyzed by immunoblot analysis with anti-EHI_176590 (left panel) and anti-HA antibody (right panel). The arrow indicates EHI_176590-HA, and asterisks indicate protein bands detected by non-specific immunoreactivity. (B) Low-magnification confocal immunofluorescence images of EHI_176590-HA-expressing and mock-transfected KU27. Trophozoites were fixed and reacted with anti-Igl and anti-HA antibodies. Merged fluorescent (IGL/HA) and DIC images are also shown. (C) Adhesion of the parental, EHI_176590-HA-expressing, and mock-transfected KU27 to HRBCs. Parental (open bars), EHI_176590-HA-expressing (black bars), and mock-transfected (gray bars) KU27 strains were co-cultured with HRBCs on ice for 30 min, and adherent HRBCs per ameba were counted. The total number of trophozoites was set to 100%, and the percentage of trophozoites, bound to 0–5, 6–10, or >10 HRBCs, are shown. Error bars indicate standard deviations of four biological replicates.