A key Plasmodium falciparum protein needed for parasite reproduction that could block malaria transmission

Deleting PfGEP1 completely blocked Plasmodium falciparum gametogenesis, supporting GEP1 as a transmission-blocking target.

This CRISPR-Cas9 loss-of-function study in Plasmodium falciparum found that PfGEP1-deficient lines failed male and female gametogenesis after xanthurenic acid or temperature-drop stimulation, and the defect persisted with Zaprinast; field sampling also found V241L and S263P variants in 12% and 20% of 49 cases.

The evidence is mechanistic parasite biology rather than a drug study, so target deletion does not by itself show that a therapy against GEP1 will work in patients or block transmission in the field.