A multistage antimalarial targets the plasmepsins IX and X essential for invasion and egress.
: Regulated exocytosis by secretory organelles is important for malaria parasite invasion and egress. Many parasite effector proteins, including perforins, adhesins, and proteases, are extensively proteolytically processed both pre- and postexocytosis. Here we report the multistage antiplasmodial activity of the aspartic protease inhibitor hydroxyl-ethyl-amine-based scaffold compound 49c. This scaffold inhibits the preexocytosis processing of several secreted rhoptry and microneme proteins by targeting the corresponding maturases plasmepsins IX (PMIX) and X (PMX), respectively. Conditional excision of PMIX revealed its crucial role in invasion, and recombinantly active PMIX and PMX cleave egress and invasion factors in a 49c-sensitive manner.<br/>
Item Type | Monograph (Technical Report) |
---|---|
ISI | 413757500045 |
Explore Further
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5730047 (OA Location)
- 10.1126/science.aaf8675 (DOI)
- 29074775 (PubMed)