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EM images of the conoid region from a wild-type T. gondii (WT) and two Δtlap2Δspm1Δtlap3 parasites (tko), which lack three microtubule-associated proteins (Liu et al., 2016). The 22 cortical (black arrows) and 2 intraconoid (white arrows) microtubules are missing in the triple-knockout parasites, but the conoid fibers are intact.
