Apicomplexan parasites have complex life cycles, frequently split between different hosts
and reliant on rapid responses as the parasites react to changing environmental conditions.
Calcium ion (Ca 2+) signaling is consequently essential for the cellular and developmental
changes that support Apicomplexan parasitism. Apicomplexan genomes reveal a rich
repertoire of genes involved in calcium signaling, although many of the genes responsible
for observed physiological changes remain unknown. There is evidence, for example, for the …