نتایج جستجو برای: duffy binding protein
تعداد نتایج: 1447864 فیلتر نتایج به سال:
Glycan masking is an emerging vaccine design strategy to focus antibody responses to specific epitopes, but it has mostly been evaluated on the already heavily glycosylated HIV gp120 envelope glycoprotein. Here this approach was used to investigate the binding interaction of Plasmodium vivax Duffy Binding Protein (PvDBP) and the Duffy Antigen Receptor for Chemokines (DARC) and to evaluate if gl...
The human erythrocyte chemokine receptor has recently been shown to be identical to the Duffy blood group antigen and is expressed in multiple organs, including kidney. Here we have examined the molecular properties of the renal isoform. Immunoblot analysis of erythrocyte and kidney detergent lysates, with a monoclonal antibody (Fy6) to the Duffy antigen, revealed that the renal isoform had a m...
Severe Plasmodium falciparum malaria is characterized by excessive sequestration of infected and uninfected erythrocytes in the microvasculature of the affected organ. Rosetting, the adhesion of P. falciparum-infected erythrocytes to uninfected erythrocytes is a virulent parasite phenotype associated with the occurrence of severe malaria. Here we report on the identification by single-cell reve...
Plasmodium vivax, a major agent of malaria in both temperate and tropical climates, has been thought to be unable to infect humans lacking the Duffy (Fy) blood group antigen because this receptor is critical for erythrocyte invasion. Recent surveys in various endemic regions, however, have reported P. vivax infections in Duffy-negative individuals, suggesting that the parasite may utilize alter...
Background: The purity and correct folding of a recombinant protein is critical for any structural, biochemical and vaccine design studies. Plasmodium vivax Duffy binding protein-II is a leading vaccine candidate for vivax malaria. In the present study, the purification process of recombinant DBP-IX (a variant form of PvDBP-II) was optimized to achieve the highest yield and purity. Moreover, ...
The interaction between the Plasmodium vivax merozoite Duffy binding protein region II (DBPII) and the human erythrocyte Duffy antigen leads to infection. Highly polymorphic regions of this protein may have arisen as a mechanism to avoid host immunity. To examine whether immunity to P. vivax is directed against these polymorphic regions of DBPII, age-associated changes in the frequency of speci...
Plasmodium vivax infects human erythrocytes through a major pathway that requires interaction between an apical parasite protein, the Duffy binding protein (PvDBP) and its receptor on reticulocytes, the Duffy antigen/receptor for chemokines (DARC). The importance of the interaction between PvDBP (region II, DBPII) and DARC to P. vivax infection has motivated our malaria research group at Oswald...
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