• Medientyp: E-Artikel
  • Titel: Cell biological analysis reveals an essential role for Pfcerli2 in erythrocyte invasion by malaria parasites
  • Beteiligte: Liffner, Benjamin [VerfasserIn]; Balbin, Juan Miguel [VerfasserIn]; Shami, Gerald J. [VerfasserIn]; Strauss, Jan [VerfasserIn]; Frölich, Sonja [VerfasserIn]; Heinemann, Gary K. [VerfasserIn]; Alder, Arne [VerfasserIn]; Wichers, Jan Stephan [VerfasserIn]; Creek, Darren J. [VerfasserIn]; Tilley, Leann [VerfasserIn]; Dixon, Matthew W. A. [VerfasserIn]; Gilberger, Tim-Wolf [VerfasserIn]; Wilson, Danny W. [VerfasserIn]
  • Erschienen: Nature Research, 2022-02-09
  • Sprache: Englisch
  • DOI: https://doi.org/10.1038/s42003-022-03020-9
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  • Beschreibung: Merozoite invasion of host red blood cells (RBCs) is essential for survival of the human malaria parasite Plasmodium falciparum. Proteins involved with RBC binding and invasion are secreted from dual-club shaped organelles at the apical tip of the merozoite called the rhoptries. Here we characterise P. falciparum Cytosolically Exposed Rhoptry Leaflet Interacting protein 2 (PfCERLI2), as a rhoptry bulb protein that is essential for merozoite invasion. Phylogenetic analyses show that cerli2 arose through an ancestral gene duplication of cerli1. We show that PfCERLI2 is essential for blood-stage growth and localises to the cytosolic face of the rhoptry bulb. Inducible knockdown of PfCERLI2 led to a proportion of merozoites failing to invade and was associated with elongation of the rhoptry organelle during merozoite development and inhibition of rhoptry antigen processing. These findings identify PfCERLI2 as a protein that has key roles in rhoptry biology during merozoite invasion.
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