4G32

Crystal Structure of a Phospholipid-Lipoxygenase Complex from Pseudomonas aeruginosa at 1.75A (P21212)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure and interaction with phospholipids of a prokaryotic lipoxygenase from Pseudomonas aeruginosa.

Garreta, A.Val-Moraes, S.P.Garcia-Fernandez, Q.Busquets, M.Juan, C.Oliver, A.Ortiz, A.Gaffney, B.J.Fita, I.Manresa, A.Carpena, X.

(2013) FASEB J 27: 4811-4821

  • DOI: 10.1096/fj.13-235952
  • Primary Citation of Related Structures:  
    4G32, 4G33

  • PubMed Abstract: 
  • Lipoxygenases (LOXs), which are essential in eukaryotes, have no confirmed function in prokaryotes that are devoid of polyunsaturated fatty acids. The structure of a secretable LOX from Pseudomonas aeruginosa (Pa_LOX), the first available from a prok ...

    Lipoxygenases (LOXs), which are essential in eukaryotes, have no confirmed function in prokaryotes that are devoid of polyunsaturated fatty acids. The structure of a secretable LOX from Pseudomonas aeruginosa (Pa_LOX), the first available from a prokaryote, presents significant differences with respect to eukaryotic LOXs, including a cluster of helices acting as a lid to the active center. The mobility of the lid and the structural variability of the N-terminal region of Pa_LOX was confirmed by comparing 2 crystal forms. The binding pocket contains a phosphatidylethanolamine phospholipid with branches of 18 (sn-1) and 14/16 (sn-2) carbon atoms in length. Carbon atoms from the sn-1 chain approach the catalytic iron in a manner that sheds light on how the enzymatic reaction might proceed. The findings in these studies suggest that Pa_LOX has the capacity to extract and modify unsaturated phospholipids from eukaryotic membranes, allowing this LOX to play a role in the interaction of P. aeruginosa with host cells.


    Organizational Affiliation

    1Institut de Biologia Molecular, Parc Científic de Barcelona, Baldiri Reixac 10, 08028 Barcelona, Spain. xcvcri@ibmb.csic.es.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
15S-LIPOXYGENASEA688Pseudomonas aeruginosaMutation(s): 0 
Gene Names: lox
EC: 1.13.11 (PDB Primary Data), 1.13.11.12 (UniProt), 1.13.11.58 (UniProt), 1.13.11.77 (UniProt)
Find proteins for Q8RNT4 (Pseudomonas aeruginosa)
Explore Q8RNT4 
Go to UniProtKB:  Q8RNT4
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZPE
Query on ZPE

Download CCD File 
A
(2R)-3-{[(S)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-(tetradec-5-enoyloxy)propyl (11Z)-octadec-11-enoate
C37 H70 N O8 P
SWNDXEVFPWKPGK-SPZKJSGBSA-N
 Ligand Interaction
GOL
Query on GOL

Download CCD File 
A
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
FE2
Query on FE2

Download CCD File 
A
FE (II) ION
Fe
CWYNVVGOOAEACU-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.181 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 132.696α = 90
b = 115.967β = 90
c = 42.643γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
BUSTERrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-11-06
    Type: Initial release
  • Version 1.1: 2013-12-25
    Changes: Database references
  • Version 1.2: 2019-07-17
    Changes: Data collection, Refinement description