Seattle Structural Genomics Center for
Infectious Disease, Seattle, WA (United States); Emerald BioStructures Inc., Bainbridge Island, WA (United States); DOE/OSTI
Seattle Structural Genomics Center for Infectious Disease, Seattle, WA (United States); Emerald BioStructures Inc., Bainbridge Island, WA (United States)
Berkeley Center for Structural Biology,
Berkeley, CA (United States)
Seattle Structural Genomics Center for Infectious Disease, Seattle, WA (United States); Seattle BioMed, Seattle, WA (United States); Univ. of Washington, Seattle, WA (United States). School of Medicine. Depts. of Global Health, Medical Education and Biomedical Informatics
Babesiosis is a tick-borne disease caused by eukaryotic Babesia parasites which are morphologically similar to Plasmodium falciparum, the causative agent of malaria in humans. Like Plasmodium, different species of Babesia are tuned to infect different mammalian hosts, including rats, dogs, horses and cattle. Most species of Plasmodium and Babesia possess an essential bifunctional enzyme for nucleotide synthesis and folate metabolism: dihydrofolate reductasethymidylate synthase. Although thymidylate synthase is highly conserved across organisms, the bifunctional form of this enzyme is relatively uncommon in nature. The structural characterization of dihydrofolate reductase-thymidylate synthase in Babesia bovis, the causative agent of babesiosis in livestock cattle, is reported here. The apo state is compared with structures that contain dUMP, NADP and two different antifolate inhibitors: pemetrexed and raltitrexed. The complexes reveal modes of binding similar to that seen in drug-resistant malaria strains and point to the utility of applying structural studies with proven cancer chemotherapies towards infectious disease research.
Begley, Darren W., et al. "Inhibitor-bound complexes of dihydrofolate reductase-thymidylate synthase from <i>Babesia bovis</i>." Acta Crystallographica. Section F, vol. 67, no. 9, Aug. 2011. https://doi.org/10.1107/s1744309111029009
Begley, Darren W., Edwards, Thomas E., Raymond, Amy C., Smith, Eric R., Hartley, Robert C., Abendroth, Jan, Sankaran, Banumathi, Lorimer, Donald D., Myler, Peter J., Staker, Bart L., & Stewart, Lance J. (2011). Inhibitor-bound complexes of dihydrofolate reductase-thymidylate synthase from <i>Babesia bovis</i>. Acta Crystallographica. Section F, 67(9). https://doi.org/10.1107/s1744309111029009
Begley, Darren W., Edwards, Thomas E., Raymond, Amy C., et al., "Inhibitor-bound complexes of dihydrofolate reductase-thymidylate synthase from <i>Babesia bovis</i>," Acta Crystallographica. Section F 67, no. 9 (2011), https://doi.org/10.1107/s1744309111029009
@article{osti_1625813,
author = {Begley, Darren W. and Edwards, Thomas E. and Raymond, Amy C. and Smith, Eric R. and Hartley, Robert C. and Abendroth, Jan and Sankaran, Banumathi and Lorimer, Donald D. and Myler, Peter J. and Staker, Bart L. and others},
title = {Inhibitor-bound complexes of dihydrofolate reductase-thymidylate synthase from <i>Babesia bovis</i>},
annote = {Babesiosis is a tick-borne disease caused by eukaryotic Babesia parasites which are morphologically similar to Plasmodium falciparum, the causative agent of malaria in humans. Like Plasmodium, different species of Babesia are tuned to infect different mammalian hosts, including rats, dogs, horses and cattle. Most species of Plasmodium and Babesia possess an essential bifunctional enzyme for nucleotide synthesis and folate metabolism: dihydrofolate reductasethymidylate synthase. Although thymidylate synthase is highly conserved across organisms, the bifunctional form of this enzyme is relatively uncommon in nature. The structural characterization of dihydrofolate reductase-thymidylate synthase in Babesia bovis, the causative agent of babesiosis in livestock cattle, is reported here. The apo state is compared with structures that contain dUMP, NADP and two different antifolate inhibitors: pemetrexed and raltitrexed. The complexes reveal modes of binding similar to that seen in drug-resistant malaria strains and point to the utility of applying structural studies with proven cancer chemotherapies towards infectious disease research.},
doi = {10.1107/s1744309111029009},
url = {https://www.osti.gov/biblio/1625813},
journal = {Acta Crystallographica. Section F},
issn = {ISSN 1744-3091},
number = {9},
volume = {67},
place = {United States},
publisher = {International Union of Crystallography},
year = {2011},
month = {08}}