skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Inhibitor-bound complexes of dihydrofolate reductase-thymidylate synthase from Babesia bovis

Journal Article · · Acta Crystallographica. Section F
 [1];  [2];  [2];  [2];  [2];  [2];  [3];  [2];  [4];  [2];  [2]
  1. Seattle Structural Genomics Center for Infectious Disease, Seattle, WA (United States); Emerald BioStructures Inc., Bainbridge Island, WA (United States)
  2. Seattle Structural Genomics Center for Infectious Disease, Seattle, WA (United States); Emerald BioStructures Inc., Bainbridge Island, WA (United States)
  3. Berkeley Center for Structural Biology, Berkeley, CA (United States)
  4. 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.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1625813
Journal Information:
Acta Crystallographica. Section F, Vol. 67, Issue 9; ISSN 1744-3091
Publisher:
International Union of CrystallographyCopyright Statement
Country of Publication:
United States
Language:
English

References (49)

The Polymerase Incomplete Primer Extension (PIPE) Method Applied to High-Throughput Cloning and Site-Directed Mutagenesis book January 2009
Emergence of Resistance to Azithromycin‐Atovaquone in Immunocompromised Patients with Babesia microti Infection journal February 2010
The plug-based nanovolume Microcapillary Protein Crystallization System (MPCS) journal October 2008
Refinement of Macromolecular Structures by the Maximum-Likelihood Method journal May 1997
Overview of the CCP 4 suite and current developments journal March 2011
Escherichia coli thymidylate synthase: amino acid substitutions by suppression of amber nonsense mutations. journal May 1990
Clustal W and Clustal X version 2.0 journal September 2007
Announcing the worldwide Protein Data Bank journal December 2003
Thymidylate Synthase Structure, Function and Implication in Drug Discovery journal September 2005
Potent Dual Thymidylate Synthase and Dihydrofolate Reductase Inhibitors: Classical and Nonclassical 2-Amino-4-oxo-5-arylthio-substituted-6-methylthieno[2,3- d ]pyrimidine Antifolates journal September 2008
Structure of and kinetic channelling in bifunctional dihydrofolate reductase–thymidylate synthase journal March 1994
[45] Thymidine kinase from Escherichia coli book January 1978
Malarial (Plasmodium falciparum) dihydrofolate reductase-thymidylate synthase: structural basis for antifolate resistance and development of effective inhibitors journal January 1999
Babesiosis of cattle journal October 2004
A dideazatetrahydrofolate analog lacking a chiral center at C-6: N-[4-[2-(2-amino-3,4-dihydro-4-oxo-7H-pyrrolo[2,3-d]pyrimidin-5yl)ethyl[benzoyl]-L-glutamic acid is an inhibitor of thymidylate synthase journal November 1992
Ticks and Tickborne Bacterial Diseases in Humans: An Emerging Infectious Threat journal March 2001
Amino acids in the dihydrofolate reductase-thymidylate synthase gene of Plasmodium falciparum involved in cycloguanil resistance differ from those involved in pyrimethamine resistance. journal April 1990
The Catalytic Mechanism and Structure of Thymidylate Synthase journal June 1995
Synthesis of N -{4-[(2,4-Diamino-5-methyl-4,7-dihydro-3 H - pyrrolo[2,3- d ]pyrimidin-6-yl)thio]benzoyl}- l -glutamic Acid and N -{4-[(2-Amino-4-oxo-5-methyl-4,7-dihydro-3 H -pyrrolo[2,3- d ]pyrimidin- 6-yl)thio]benzoyl}- l -glutamic Acid as Dual Inhibitors of Dihydrofolate Reductase and Thymidylate Synthase and as Potential Antitumor Agents journal November 2005
Insights into antifolate resistance from malarial DHFR-TS structures
  • Yuvaniyama, Jirundon; Chitnumsub, Penchit; Kamchonwongpaisan, Sumalee
  • Nature Structural & Molecular Biology, Vol. 10, Issue 5 https://doi.org/10.1038/nsb921
journal April 2003
XDS journal January 2010
Evidence that a point mutation in dihydrofolate reductase-thymidylate synthase confers resistance to pyrimethamine in falciparum malaria. journal December 1988
Human Thymidylate Synthase Is in the Closed Conformation When Complexed with dUMP and Raltitrexed, an Antifolate Drug , journal February 2001
Salvage and storage of infectious disease protein targets in the SSGCID high-throughput crystallization pathway using microfluidics journal August 2011
Genome Sequence of Babesia bovis and Comparative Analysis of Apicomplexan Hemoprotozoa journal October 2007
Automatic processing of rotation diffraction data from crystals of initially unknown symmetry and cell constants journal December 1993
Babesiosis journal July 2000
Babesiosis: Recent insights into an ancient disease journal September 2008
Kinetic Characterization of Bifunctional Thymidylate Synthase-Dihydrofolate Reductase (TS-DHFR) from Cryptosporidium hominis : A PARADIGM SHIFT FOR TS ACTIVITY AND CHANNELING BEHAVIOR journal February 2004
MolProbity : all-atom structure validation for macromolecular crystallography journal December 2009
Folate-based thymidylate synthase inhibitors as anticancer drugs journal November 1995
Coot model-building tools for molecular graphics journal November 2004
Phylogenetic Classification of Protozoa Based on the Structure of the Linker Domain in the Bifunctional Enzyme, Dihydrofolate Reductase-Thymidylate Synthase journal October 2003
DNA and RNA Synthesis:  Antifolates journal February 2005
Multi-targeted antifolates aimed at avoiding drug resistance form covalent closed inhibitory complexes with human and Escherichia coli thymidylate synthases journal November 2001
The Protein Maker: an automated system for high-throughput parallel purification journal August 2011
Thymidylate synthase: A target for anticancer drug design journal January 1989
Nonconserved Residues Ala287 and Ser290 of the Cryptosporidium hominis Thymidylate Synthase Domain Facilitate Its Rapid Rate of Catalysis , journal July 2007
Automated macromolecular model building for X-ray crystallography using ARP/wARP version 7 journal June 2008
Lessons and Conclusions from Dissecting the Mechanism of a Bisubstrate Enzyme:  Thymidylate Synthase Mutagenesis, Function, and Structure journal January 2003
The Protein Data Bank journal January 2000
Automatic indexing of rotation diffraction patterns journal February 1988
Nanovolume optimization of protein crystal growth using the microcapillary protein crystallization system journal August 2010
A proteomic view of the Plasmodium falciparum life cycle journal October 2002
[20] Processing of X-ray diffraction data collected in oscillation mode book January 1997
Crystal structure of human thymidylate synthase: a structural mechanism for guiding substrates into the active site journal December 1995
Ulp1-SUMO Crystal Structure and Genetic Analysis Reveal Conserved Interactions and a Regulatory Element Essential for Cell Growth in Yeast journal May 2000
Phaser crystallographic software journal July 2007
Conversion of Uracil Deoxyriboside to Thymidine of Deoxyribonucleic acid journal June 1956

Cited By (7)

Crystal structures of the closed form of Mycobacterium tuberculosis dihydrofolate reductase in complex with dihydrofolate and antifolates text January 2019
Crystal structures of the closed form of Mycobacterium tuberculosis dihydrofolate reductase in complex with dihydrofolate and antifolates journal July 2019
Human dihydrofolate reductase and thymidylate synthase form a complex in vitro and co-localize in normal and cancer cells journal August 2016
Human dihydrofolate reductase and thymidylate synthase form a complex in vitro and co-localize in normal and cancer cells text January 2016
Targeting plant DIHYDROFOLATE REDUCTASE with antifolates and mechanisms for genetic resistance journal June 2018
Screening the Medicines for Malaria Venture Pathogen Box against piroplasm parasites journal August 2019
Combining Functional and Structural Genomics to Sample the Essential Burkholderia Structome journal January 2013