Plasmodium falciparum STEVOR proteins impact erythrocyte mechanical properties

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Plasmodium falciparum STEVOR proteins impact erythrocyte mechanical properties.

Infection of erythrocytes with the human malaria parasite, Plasmodium falciparum, results in dramatic changes to the host cell structure and morphology. The predicted functional localization of the STEVOR proteins at the erythrocyte surface suggests that they may be involved in parasite-induced modifications of the erythrocyte membrane during parasite development. To address the biologic functi...

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Plasmodium falciparum STEVOR phosphorylation regulates host erythrocyte deformability enabling malaria parasite transmission.

Deformability of Plasmodium falciparum gametocyte-infected erythrocytes (GIEs) allows them to persist for several days in blood circulation and to ensure transmission to mosquitoes. Here, we investigate the mechanism by which the parasite proteins STEVOR (SubTElomeric Variable Open Reading frame) exert changes on GIE deformability. Using the microsphiltration method, immunoprecipitation, and ma...

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The Plasmodium falciparum STEVOR Multigene Family Mediates Antigenic Variation of the Infected Erythrocyte

Modifications of the Plasmodium falciparum-infected red blood cell (iRBC) surface have been linked to parasite-associated pathology. Such modifications enable the parasite to establish long-lasting chronic infection by evading antibody mediate immune recognition and splenic clearance. With the exception of the well-demonstrated roles of var-encoded PfEMP1 in virulence and immune evasion, the bi...

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An erythrocyte cytoskeleton-binding motif in exported Plasmodium falciparum proteins.

Binding of exported malaria parasite proteins to the host cell membrane and cytoskeleton contributes to the morphological, functional, and antigenic changes seen in Plasmodium falciparum-infected erythrocytes. One such exported protein that targets the erythrocyte cytoskeleton is the mature parasite-infected erythrocyte surface antigen (MESA), which interacts with the N-terminal 30-kDa domain o...

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The urgent requirement of next generation antimalarials has been of recent interest due to the emergence of drug-resistant parasite. The genome-wide analysis of Plasmodium falciparum helicases revealed three RuvB proteins. Due to the presence of helicase motif I and II in PfRuvBs, there is a high probability that they contain ATPase and possibly helicase activity. The Plasmodium database has ho...

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ژورنال

عنوان ژورنال: Blood

سال: 2012

ISSN: 0006-4971,1528-0020

DOI: 10.1182/blood-2011-08-370734