4AEY | pdb_00004aey

Crystal structure of FolX from Pseudomonas aeruginosa

• PDB DOI: https://doi.org/10.2210/pdb4AEY/pdb

• Classification: ISOMERASE
• Organism(s): Pseudomonas aeruginosa
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2012-01-13 Released: 2012-03-21 
• Deposition Author(s): Gabrielsen, M., Beckham, K.S.H., Roe, A.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 
  0.311 (Depositor), 0.359 (DCC) 
• R-Value Work: 
  0.283 (Depositor), 0.360 (DCC) 
• R-Value Observed: 
  0.284 (Depositor) 

Starting Model: experimental

Literature

Folx from Pseudomonas Aeruginosa is Octameric in Both Crystal and Solution.

Gabrielsen, M., Beckham, K.S.H., Cogdell, R.J., Byron, O., Roe, A.J.

(2012) FEBS Lett 586: 1160

• PubMed: 22575651 
• DOI: https://doi.org/10.1016/j.febslet.2012.03.031
• Primary Citation Related Structures: 
  4AEY


• PubMed Abstract: 
  

  FolX encodes an epimerase that forms one step of the tetrahydrofolate biosynthetic pathway, which is of interest as it is an established target for important drugs. Here we report the crystal structure of FolX from the bacterial opportunistic pathogen Pseudomonas aeruginosa, as well as a detailed analysis of the protein in solution, using analytical ultracentrifugation (AUC) and small-angle X-ray scattering (SAXS). In combination, these techniques confirm that the protein is an octamer both in the crystal structure, and in solution.

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Organizational Affiliation: 
• Institute of Infection, Immunity and Immunology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK.

Biological Assembly 1  

Global Symmetry: Dihedral - D4  (Explore in 3D)
Global Stoichiometry: Homo 8-mer - A8 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 18.01 kDa 
• Atom Count: 762 
• Modeled Residue Count: 107 
• Deposited Residue Count: 156 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
D-ERYTHRO-7,8-DIHYDRONEOPTERIN TRIPHOSPHATE EPIMERASE	A	156	Pseudomonas aeruginosa	Mutation(s): 0  EC: 5.1.99.7
UniProt
Find proteins for Q9HYG7 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)) Explore Q9HYG7  Go to UniProtKB:  Q9HYG7

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free:  0.311 (Depositor), 0.359 (DCC) 
• R-Value Work:  0.283 (Depositor), 0.360 (DCC) 
• R-Value Observed: 0.284 (Depositor) 

Space Group: I 4 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 133.98	α = 90
b = 133.98	β = 90
c = 133.98	γ = 90

Software Package:

Software Name	Purpose
BUSTER	refinement
MOSFLM	data reduction
SCALA	data scaling
BALBES	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-03-21 
Deposition Author(s): Gabrielsen, M., Beckham, K.S.H., Roe, A.J.

Revision History  

• Version 1.0: 2012-03-21
  Type: Initial release
  
• Version 1.1: 2012-05-02
  Changes: Other
• Version 1.2: 2012-05-23
  Changes: Other
• Version 1.3: 2012-06-20
  Changes: Other
• Version 1.4: 2023-12-20
  Changes: Data collection, Database references, Other, Refinement description