3ZQU

STRUCTURE OF A PROBABLE AROMATIC ACID DECARBOXYLASE

• PDB DOI: https://doi.org/10.2210/pdb3ZQU/pdb

• Classification: LYASE
• Organism(s): Pseudomonas aeruginosa PAO1
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2011-06-11 Released: 2011-11-02 
• Deposition Author(s): Kopec, J., Schnell, R., Schneider, G.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.195 
• R-Value Work: 0.171 
• R-Value Observed: 0.173 

Literature

Structure of Pa4019, a Putative Aromatic Acid Decarboxylase from Pseudomonas Aeruginosa

Kopec, J., Schnell, R., Schneider, G.

(2011) Acta Crystallogr Sect F Struct Biol Cryst Commun 67: 1184

• PubMed: 22102023 
• DOI: https://doi.org/10.1107/S174430911102923X
• Primary Citation of Related Structures:  
  3ZQU


• PubMed Abstract: 
  

  The ubiX gene (PA4019) of Pseudomonas aeruginosa has been annotated as encoding a putative 3-octaprenyl-4-hydroxybenzoate decarboxylase from the ubiquinone-biosynthesis pathway. Based on a transposon mutagenesis screen, this gene was also implicated as being essential for the survival of this organism. The crystal structure of recombinant UbiX determined to 1.5 Å resolution showed that the protein belongs to the superfamily of homo-oligomeric flavine-containing cysteine decarboxylases. The enzyme assembles into a dodecamer with 23 point symmetry. The subunit displays a typical Rossmann fold and contains one FMN molecule bound at the interface between two subunits.

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Organizational Affiliation: 

Department of Medical Biochemistry and Biophysics, Karolinska Institutet, S-171 77 Stockholm, Sweden.

Biological Assembly 1  

Global Symmetry: Tetrahedral - T  (Explore in 3D)
Global Stoichiometry: Homo 12-mer - A12 

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

Macromolecule Content

• Total Structure Weight: 23.04 kDa 
• Atom Count: 1,774 
• Modelled Residue Count: 207 
• Deposited Residue Count: 209 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PROBABLE AROMATIC ACID DECARBOXYLASE	A	209	Pseudomonas aeruginosa PAO1	Mutation(s): 0
UniProt
Find proteins for Q9HX08 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)) Explore Q9HX08  Go to UniProtKB:  Q9HX08

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FNR	B [auth A]	1-DEOXY-1-(7,8-DIMETHYL-2,4-DIOXO-3,4-DIHYDRO-2H-BENZO[G]PTERIDIN-1-ID-10(5H)-YL)-5-O-PHOSPHONATO-D-RIBITOL C17 H23 N4 O9 P YTNIXZGTHTVJBW-SCRDCRAPSA-N
SO4	C [auth A], D [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.195 
• R-Value Work: 0.171 
• R-Value Observed: 0.173 
• Space Group: F 2 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 141.77	α = 90
b = 141.77	β = 90
c = 141.77	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-11-02 
Deposition Author(s): Kopec, J., Schnell, R., Schneider, G.

Revision History  

• Version 1.0: 2011-11-02
  Type: Initial release
  
• Version 1.1: 2012-03-28
  Changes: Other
• Version 1.2: 2023-12-20
  Changes: Data collection, Database references, Derived calculations, Other, Refinement description