3UPL

Crystal structure of the Brucella abortus enzyme catalyzing the first committed step of the methylerythritol 4-phosphate pathway.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.176 
  • R-Value Work: 0.150 
  • R-Value Observed: 0.151 

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This is version 1.1 of the entry. See complete history


Literature

Crystal structure of Brucella abortus deoxyxylulose-5-phosphate reductoisomerase-like (DRL) enzyme involved in isoprenoid biosynthesis.

Perez-Gil, J.Calisto, B.M.Behrendt, C.Kurz, T.Fita, I.Rodriguez-Concepcion, M.

(2012) J Biol Chem 287: 15803-15809

  • DOI: 10.1074/jbc.M112.354811
  • Primary Citation of Related Structures:  
    3UPY, 3UPL

  • PubMed Abstract: 
  • Most bacteria use the 2-C-methyl-D-erythritol 4-phosphate (MEP) pathway for the synthesis of their essential isoprenoid precursors. The absence of the MEP pathway in humans makes it a promising new target for the development of much needed new and safe antimicrobial drugs ...

    Most bacteria use the 2-C-methyl-D-erythritol 4-phosphate (MEP) pathway for the synthesis of their essential isoprenoid precursors. The absence of the MEP pathway in humans makes it a promising new target for the development of much needed new and safe antimicrobial drugs. However, bacteria show a remarkable metabolic plasticity for isoprenoid production. For example, the NADPH-dependent production of MEP from 1-deoxy-D-xylulose 5-phosphate in the first committed step of the MEP pathway is catalyzed by 1-deoxy-D-xylulose-5-phosphate reductoisomerase (DXR) in most bacteria, whereas an unrelated DXR-like (DRL) protein was recently found to catalyze the same reaction in some organisms, including the emerging human and animal pathogens Bartonella and Brucella. Here, we report the x-ray crystal structures of the Brucella abortus DRL enzyme in its apo form and in complex with the broad-spectrum antibiotic fosmidomycin solved to 1.5 and 1.8 Å resolution, respectively. DRL is a dimer, with each polypeptide folding into three distinct domains starting with the NADPH-binding domain, in resemblance to the structure of bacterial DXR enzymes. Other than that, DRL and DXR show a low structural relationship, with a different disposition of the domains and a topologically unrelated C-terminal domain. In particular, the active site of DRL presents a unique arrangement, suggesting that the design of drugs that would selectively inhibit DRL-harboring pathogens without affecting beneficial or innocuous bacteria harboring DXR should be feasible. As a proof of concept, we identified two strong DXR inhibitors that have virtually no effect on DRL activity.


    Organizational Affiliation

    Department of Molecular Genetics, Centre for Research in Agricultural Genomics (CRAG), Consejo Superior de Investigaciones Científicas (CSIC)-Institut de Recerca i Tecnologia Agroalimentàries (IRTA)-Universitat Autònoma de Barcelona (UAB), 08193 Barcelona, Spain.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
OxidoreductaseA, B446Brucella abortus 2308Mutation(s): 0 
Gene Names: BAB2_0264DRL
Find proteins for Q2YIM3 (Brucella abortus (strain 2308))
Explore Q2YIM3 
Go to UniProtKB:  Q2YIM3
Protein Feature View
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.176 
  • R-Value Work: 0.150 
  • R-Value Observed: 0.151 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 49.365α = 68.63
b = 63.38β = 75.8
c = 79.123γ = 72.7
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SHELXphasing
REFMACrefinement
PDB_EXTRACTdata extraction
DNAdata collection
DMMultiphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-03-28
    Type: Initial release
  • Version 1.1: 2012-08-15
    Changes: Database references