PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been identified as the rosetting ligand of the malaria parasite P. falciparum [1,2]. Rosetting is the adhesion of infected erythrocytes with uninfected erythrocytes in the vasculature ...
PfEMP1 (Plasmodium falciparum erythrocyte membrane protein) has been identified as the rosetting ligand of the malaria parasite P. falciparum [1,2]. Rosetting is the adhesion of infected erythrocytes with uninfected erythrocytes in the vasculature of the infected organ, and is associated with severe malaria. PfEMP1 interacts with Complement Receptor One on uninfected erythrocytes to form rosettes [2]. The extreme variation within these proteins and the grouping of var genes implies that var gene recombination preferentially occurs within var gene groups. These groups reflect a functional diversification that has evolved to cope with the varying conditions of transmission and host immune response met by the parasite [3]. A recombination hotspot was uncovered between Duffy-binding-like (DBL) subdomains [4]. Solution of the crystal structure of the N-terminal and first DBL region of PfEMP1 from the VarO variant of the PfEMP1 protein is found to be directly implicated in rosetting as the heparin-binding site [5].
This entry represents a domain found C-terminally to Duffy binding-like (DBL) domains of PfEMP1, the adhesin of Plasmodium falciparum which is an important target for protective immunity and is implicated in the pathology of malaria through its abili ...
This entry represents a domain found C-terminally to Duffy binding-like (DBL) domains of PfEMP1, the adhesin of Plasmodium falciparum which is an important target for protective immunity and is implicated in the pathology of malaria through its ability to adhere to host endothelial receptors [1-5]. This domain consists of an helical bundle.
This domain is found in the surface protein PfEMP1 from Plasmodium falciparum. PfEMP1 is essential for the virulence of this organism. This protein interacts with the endothelial protein C receptor (EPCR) through its cysteine-rich interdomain region ...
This domain is found in the surface protein PfEMP1 from Plasmodium falciparum. PfEMP1 is essential for the virulence of this organism. This protein interacts with the endothelial protein C receptor (EPCR) through its cysteine-rich interdomain region (CIDRalpha1, this entry). This domain show binding surfaces that are conserved in shape and bonding potential, despite dramatic sequence diversity. The domain is built around a long three-helical core bundle, with a four-stranded beta-sheet on one side and two alpha-helices on the opposite side [1,2].
This family, the N-terminal segment, is the most variable part of the variant surface antigen family of Plasmodium falciparum, the erythrocyte membrane protein-1 (PfEMP1) proteins. PfEMP1 is an important target for protective immunity and is implicat ...
This family, the N-terminal segment, is the most variable part of the variant surface antigen family of Plasmodium falciparum, the erythrocyte membrane protein-1 (PfEMP1) proteins. PfEMP1 is an important target for protective immunity and is implicated in the pathology of malaria through its ability to adhere to host endothelial receptors [1]. A structural and functional study of the N-terminal domain of PfEMP1 from the VarO variant comprising the N-terminal segment (NTS) and the first DBL domain (DBL1alpha1), shows this region is directly implicated in rosetting. NTS, previously thought to be a structurally independent component of PfEMP1, forms an integral part of the DBL1alpha domain that is found to be the important heparin-binding site [2]. This family is closely associated with PFEMP, Pfam:PF03011, and Duffy_binding, Pfam:PF05424.
