4L8L

Crystal Structure of the Type II Dehydroquinase from Pseudomonas aeruginosa


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.74 Å
  • R-Value Free: 0.192 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.163 

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This is version 1.2 of the entry. See complete history


Literature

Structure of type II dehydroquinase from Pseudomonas aeruginosa.

Reiling, S.Kelleher, A.Matsumoto, M.M.Robinson, G.Asojo, O.A.

(2014) Acta Crystallogr F Struct Biol Commun 70: 1485-1491

  • DOI: 10.1107/S2053230X14020214
  • Primary Citation of Related Structures:  
    4L8L

  • PubMed Abstract: 
  • Pseudomonas aeruginosa causes opportunistic infections and is resistant to most antibiotics. Ongoing efforts to generate much-needed new antibiotics include targeting enzymes that are vital for P. aeruginosa but are absent in mammals. One such enzyme, type II dehydroquinase (DHQase), catalyzes the interconversion of 3-dehydroquinate and 3-dehydroshikimate, a necessary step in the shikimate pathway ...

    Pseudomonas aeruginosa causes opportunistic infections and is resistant to most antibiotics. Ongoing efforts to generate much-needed new antibiotics include targeting enzymes that are vital for P. aeruginosa but are absent in mammals. One such enzyme, type II dehydroquinase (DHQase), catalyzes the interconversion of 3-dehydroquinate and 3-dehydroshikimate, a necessary step in the shikimate pathway. This step is vital for the proper synthesis of phenylalanine, tryptophan, tyrosine and other aromatic metabolites. The recombinant expression, purification and crystal structure of catalytically active DHQase from P. aeruginosa (PaDHQase) are presented. Cubic crystals belonging to space group F23, with unit-cell parameters a=b=c=125.39 Å, were obtained by vapor diffusion in sitting drops and the structure was refined to an R factor of 16% at 1.74 Å resolution. PaDHQase is a prototypical type II DHQase with the classical flavodoxin-like α/β topology.


    Organizational Affiliation

    National School of Tropical Medicine, Baylor College of Medicine, Houston, TX 77030, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
3-dehydroquinate dehydratase 1A145Pseudomonas aeruginosa PAO1Mutation(s): 0 
Gene Names: aroQaroQ1PA4846
EC: 4.2.1.10
Find proteins for O30557 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Explore O30557 
Go to UniProtKB:  O30557
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.74 Å
  • R-Value Free: 0.192 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.163 
  • Space Group: F 2 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 125.39α = 90
b = 125.39β = 90
c = 125.39γ = 90
Software Package:
Software NamePurpose
CrystalCleardata collection
PHASERphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-07-23
    Type: Initial release
  • Version 1.1: 2014-11-12
    Changes: Structure summary
  • Version 1.2: 2014-11-19
    Changes: Database references