Journal
INFECTION AND IMMUNITY
Volume 79, Issue 7, Pages 2880-2888Publisher
AMER SOC MICROBIOLOGY
DOI: 10.1128/IAI.01326-10
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- A*STAR BMRC [06/1/22/19/467, 08/1/22/19/613]
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Invasion of the host cell by the malaria parasite is a key step for parasite survival and the only stage of its life cycle where the parasite is extracellular, and it is therefore a target for an antimalaria intervention strategy. Multiple members of the reticulocyte binding protein homologues (RH) family are found in all plasmodia and have been shown to bind to host red blood cells directly. In the study described here, we delineated the erythrocyte binding domain (EBD) of one member of the RH family, termed Py235, from Plasmodium yoelii. Moreover, we have obtained the low-resolution structure of the EBD using small-angle X-ray scattering. Comparison of the EDB structure to other characterized Plasmodium receptor binding domains suggests that there may be an overall structural conservation. These findings may help in developing new approaches to target receptor ligand interactions mediated by parasite proteins.
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