2bma

The crystal structure of Plasmodium falciparum glutamate dehydrogenase, a putative target for novel antimalarial drugs

spinqualitylabelsall models 2bma, resolution 2.70Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2bma is a 6 chain structure with sequence from Plasmodium falciparum. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.7Å Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function O96940_PLAFA Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed Plasmodium falciparum is the main causative agent of tropical malaria, the most severe parasitic disease in the world. Growing resistance of Plasmodia towards available drugs is an increasing problem in countries where malaria is endemic. As Plasmodia are sensitive to oxidative stress, augmenting this in the parasite represents a promising principle for the development of novel antimalarial drugs. The NADP-dependent glutamate dehydrogenase (GDH) of P.falciparum is largely responsible for the production of NADPH in the parasite, which in turn serves as electron source for the antioxidative enzymes glutathione reductase and thioredoxin reductase. As GDH does not occur in the host erythrocyte, GDH is a particularly attractive target for drug therapy. The three-dimensional structure of P.falciparum GDH in the unligated state has been determined by X-ray crystallography to a resolution of 2.7A. Compared to the mammalian enzymes, two amino acid residues are exchanged in the putative active site of the parasite GDH. The most obvious differences between parasite and human GDH are the subunit interfaces of the hexameric proteins. In the parasite protein, several salt-bridges mediate contacts between the subunits whereas in the human enzyme these interactions are mainly of hydrophobic nature. Furthermore, P.falciparum GDH possesses a unique N-terminal extension that does not occur in any other GDH sequence so far studied. These findings might be exploited for the design of peptidomimetics capable of disrupting the oligomeric organisation of the parasite enzyme. The crystal structure of Plasmodium falciparum glutamate dehydrogenase, a putative target for novel antimalarial drugs.,Werner C, Stubbs MT, Krauth-Siegel RL, Klebe G J Mol Biol. 2005 Jun 10;349(3):597-607. Epub 2005 Apr 12. PMID:15878595 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Glutamate dehydrogenase 3D structures

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