Plasmodium falciparum histidine triad protein and calmodulin modulates calcium homeostasis and intracellular proteolysis.

Calcium signaling has an essential role in fundamental processes of Plasmodium life cycle, including migration, cell invasion and parasite development. Two important players in calcium homeostasis, the Histidine Triad (HIT) protein that is implicated in calcium signaling in mammalian cells and calmodulin, which is a classic calcium sensor in eukaryotes are present in Plasmodium falciparum, however theirs function is unknown in the parasite. Here, we investigated the involvement of the P.