Cellular localisation of invasins in P. falciparum schizonts. (A–E) IFA of schizonts from HA tagged P. falciparum parasite lines labeled with anti-PfRON4, to mark the rhoptry neck, DAPI, to mark nuclei and anti-HA. (A) PfRON2 (B) rhoptry protein PFF0645c (C) apical sushi protein PfASP and (E) inner membrane complex protein PF14_0578. PfRON2-HA schizonts were colabeled with anti-PfRON4, a marker of the rhoptry neck. PFF0645c and PfASP each displayed a similar apical localization in schizonts, showing overlap of labeling with PfRON4. PF14_0578-HA labeling was peripheral in late stage schizonts (E), suggestive of an inner-membrane complex (IMC) or plasma membrane localization.

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