Red Blood Cell Invasion by Plasmodium vivax

Red Blood Cell Invasion by Plasmodium vivax: Structural Basis for DBP Engagement of DARC

Plasmodium parasites use specialized ligands which bind to red blood cell (RBC) receptors during invasion. Defining the mechanism of receptor recognition is essential for the design of interventions against malaria. Here, the authors present the structural basis for Duffy antigen (DARC) engagement by P. vivax Duffy binding protein (DBP). They used NMR to map the core region of the DARC ectodomain contacted by the receptor binding domain of DBP (DBP-RII) and solved two distinct crystal structures of DBP-RII bound to this core region of DARC. Isothermal titration calorimetry studies show these structures are part ...

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