1F76

ESCHERICHIA COLI DIHYDROOROTATE DEHYDROGENASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.177 

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This is version 1.3 of the entry. See complete history


Literature

E. coli Dihydroorotate Dehydrogenase Reveals Structural and Functional Distinction between different classes of dihydroorotate dehydrogenases

Norager, S.Jensen, K.F.Bjornberg, O.Larsen, S.

(2002) Structure 10: 1211-1223

  • DOI: 10.1016/s0969-2126(02)00831-6
  • Primary Citation of Related Structures:  
    1F76

  • PubMed Abstract: 
  • The flavoenzymes dihydroorotate dehydrogenases (DHODs) catalyze the fourth and only redox step in the de novo biosynthesis of UMP. Enzymes belonging to class 2, according to their amino acid sequence, are characterized by having a serine residue as t ...

    The flavoenzymes dihydroorotate dehydrogenases (DHODs) catalyze the fourth and only redox step in the de novo biosynthesis of UMP. Enzymes belonging to class 2, according to their amino acid sequence, are characterized by having a serine residue as the catalytic base and a longer N terminus. The structure of class 2 E. coli DHOD, determined by MAD phasing, showed that the N-terminal extension forms a separate domain. The catalytic serine residue has an environment differing from the equivalent cysteine in class 1 DHODs. Significant differences between the two classes of DHODs were identified by comparison of the E. coli DHOD with the other known DHOD structures, and differences with the class 2 human DHOD explain the variation in their inhibitors.


    Related Citations: 
    • Crystallization and Preliminary X-ray Studies of Membrane-associated Escherichia coli Dihydroorotate Dehydrogenase.
      Rowland, P., Norager, S., Jensen, K.F., Larsen, S.
      (2000) Acta Crystallogr D Biol Crystallogr 56: 659
    • The Activity of Escherichia coli Dihydroorotate Dehydrogenase is Dependent on a Conserved Loop Identified by Sequence Homology, Mutagenesis and Limited Proteolysis.
      Bjornberg, O., Gruner, A.-C., Roepstorff, P., Jensen, K.F.
      (1999) Biochemistry 38: 2899
    • The Dihydroorotate Dehydrogenases of Escherichia coli and Lactococcus Lactis Represent Two Distinct Families of the Enzyme.
      Bjornberg, O., Jensen, K.F., Gruner, A.-C., Ottosen, M., Sorensen, P., Rowland, P., Norager, S., Larsen, S.
      (1999) Flavins And Flavoproteins,proc 13th Int Symp --: 607
    • Reduction Reactions of Two Dihydroorotate Dehydrogenases.
      Palfey, B., Bjornberg, O., Jensen, K.F.
      (1999) Flavins And Flavoproteins,proc 13th Int Symp --: 615

    Organizational Affiliation

    Centre for Crystallographic Studies, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Dihydroorotate dehydrogenase (quinone)ABDE336Escherichia coli K-12Mutation(s): 0 
Gene Names: pyrDb0945JW0928
EC: 1.3.5.2
Find proteins for P0A7E1 (Escherichia coli (strain K12))
Explore P0A7E1 
Go to UniProtKB:  P0A7E1
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.177 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 119.7α = 90
b = 119.7β = 90
c = 295.97γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SOLVEphasing
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-10-16
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2014-03-12
    Changes: Source and taxonomy, Version format compliance