3I3R

X-ray structure dihydrofolate reductase/thymidylate synthase from babesia bovis at 2.35A resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.202 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

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

Begley, D.W.Edwards, T.E.Raymond, A.C.Smith, E.R.Hartley, R.C.Abendroth, J.Sankaran, B.Lorimer, D.D.Myler, P.J.Staker, B.L.Stewart, L.J.

(2011) Acta Crystallogr.,Sect.F 67: 1070-1077

  • DOI: 10.1107/S1744309111029009
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • 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 differen ...

    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 reductase-thymidylate 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.


    Organizational Affiliation

    Seattle Structural Genomics Center for Infectious Disease (http://www.ssgcid.org), USA. dbegley@embios.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Dihydrofolate reductase/thymidylate synthase
A, B
511Babesia bovisMutation(s): 0 
Find proteins for A7ASX7 (Babesia bovis)
Go to UniProtKB:  A7ASX7
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
A, B
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

Unit Cell:
Length (Å)Angle (°)
a = 52.540α = 119.00
b = 83.480β = 97.99
c = 84.190γ = 100.69
Software Package:
Software NamePurpose
BOSdata collection
XSCALEdata scaling
XDSdata reduction
REFMACrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-08-18
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Source and taxonomy, Version format compliance
  • Version 1.2: 2011-09-21
    Type: Database references
  • Version 1.3: 2018-01-24
    Type: Structure summary