4C0X

The crystal strucuture of PpAzoR in complex with anthraquinone-2- sulfonate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.193 
  • R-Value Work: 0.169 
  • R-Value Observed: 0.170 

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This is version 1.2 of the entry. See complete history


Literature

The Crystal Structure of Pseudomonas Putida Azor: The Active Site Revisited.

Goncalves, A.M.D.Mendes, S.De Sanctis, D.Martins, L.O.Bento, I.

(2013) FEBS J 280: 6643

  • DOI: 10.1111/febs.12568
  • Primary Citation of Related Structures:  
    4C0W, 4C0X, 4C14

  • PubMed Abstract: 
  • The enzymatic degradation of azo dyes begins with the reduction of the azo bond. In this article, we report the crystal structures of the native azoreductase from Pseudomonas putida MET94 (PpAzoR) (1.60 Å), of PpAzoR in complex with anthraquinone-2-sulfonate (1 ...

    The enzymatic degradation of azo dyes begins with the reduction of the azo bond. In this article, we report the crystal structures of the native azoreductase from Pseudomonas putida MET94 (PpAzoR) (1.60 Å), of PpAzoR in complex with anthraquinone-2-sulfonate (1.50 Å), and of PpAzoR in complex with Reactive Black 5 dye (1.90 Å). These structures reveal the residues and subtle changes that accompany substrate binding and release. Such changes highlight the fine control of access to the catalytic site that is required by the ping-pong mechanism, and in turn the specificity offered by the enzyme towards different substrates. The topology surrounding the active site shows novel features of substrate recognition and binding that help to explain and differentiate the substrate specificity observed among different bacterial azoreductases.


    Organizational Affiliation

    Macromolecular Crystallography Unit, Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Oeiras, Portugal.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
FMN-DEPENDENT NADH-AZOREDUCTASE 1A203Pseudomonas putidaMutation(s): 0 
EC: 1.7 (PDB Primary Data), 1.6.5.2 (PDB Primary Data), 1.7.1.17 (UniProt)
UniProt
Find proteins for Q88IY3 (Pseudomonas putida (strain ATCC 47054 / DSM 6125 / CFBP 8728 / NCIMB 11950 / KT2440))
Explore Q88IY3 
Go to UniProtKB:  Q88IY3
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FMN (Subject of Investigation/LOI)
Query on FMN

Download Ideal Coordinates CCD File 
B [auth A]FLAVIN MONONUCLEOTIDE
C17 H21 N4 O9 P
FVTCRASFADXXNN-SCRDCRAPSA-N
 Ligand Interaction
AQN (Subject of Investigation/LOI)
Query on AQN

Download Ideal Coordinates CCD File 
C [auth A]9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid
C14 H8 O5 S
MMNWSHJJPDXKCH-UHFFFAOYSA-N
 Ligand Interaction
PG4
Query on PG4

Download Ideal Coordinates CCD File 
F [auth A], G [auth A]TETRAETHYLENE GLYCOL
C8 H18 O5
UWHCKJMYHZGTIT-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

Download Ideal Coordinates CCD File 
D [auth A], E [auth A]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.193 
  • R-Value Work: 0.169 
  • R-Value Observed: 0.170 
  • Space Group: F 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.712α = 90
b = 94.947β = 90
c = 146.511γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
iMOSFLMdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-10-30
    Type: Initial release
  • Version 1.1: 2013-12-18
    Changes: Database references
  • Version 1.2: 2017-08-09
    Changes: Data collection