Pyrophosphate homeostasis in multiple subcellular compartments is essential in <i>Plasmodium falciparum</i>

has taken a unique evolutionary trajectory in pyrophosphate metabolism by utilizing a leader sequence to direct sPPases to multiple organelles. This differs from model eukaryotes as they generally encode multiple sPPases at distinct genetic loci to facilitate pyrophosphate degradation in cytosolic and organellar compartments. The essentiality and divergence of PfsPPases also highlight them as promising targets for the development of novel antimalarial drugs. IMPORTANCE: encodes two soluble pyrophosphatase isoforms from a single genetic locus. The longer isoform contains an N-terminal leader sequence that targets the enzymes into the mitochondrion and the apicoplast. This dual targeting mechanism of soluble pyrophosphatases has not been previously reported in any organisms. We show that both isoforms are essential for parasite growth and development. These findings highlight the critical role of organellar PPi degradation and identify soluble pyrophosphatases as promising antimalarial drug targets.