2INC

Native Toluene/o-xylene Monooxygenase Hydroxylase X-ray Crystal Structure


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.197 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

X-ray crystal structures of manganese(II)-reconstituted and native toluene/o-xylene monooxygenase hydroxylase reveal rotamer shifts in conserved residues and an enhanced view of the protein interior.

McCormick, M.S.Sazinsky, M.H.Condon, K.L.Lippard, S.J.

(2006) J.Am.Chem.Soc. 128: 15108-15110

  • DOI: 10.1021/ja064837r
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • We report the X-ray crystal structures of native and manganese(II)-reconstituted toluene/o-xylene monooxygenase hydroxylase (ToMOH) from Pseudomonas stutzeri OX1 to 1.85 and 2.20 A resolution, respectively. The structures reveal that reduction of the ...

    We report the X-ray crystal structures of native and manganese(II)-reconstituted toluene/o-xylene monooxygenase hydroxylase (ToMOH) from Pseudomonas stutzeri OX1 to 1.85 and 2.20 A resolution, respectively. The structures reveal that reduction of the dimetallic active site is accompanied by a carboxylate shift and alteration of the coordination environment for dioxygen binding and activation. A rotamer shift in a strategically placed asparagine 202 accompanies dimetallic center reduction and is proposed to influence protein component interactions. This rotamer shift is conserved between ToMOH and the corresponding residue in methane monooxygenase hydroxylase (MMOH). Previously unidentified hydrophobic pockets similar to those present in MMOH are assigned.


    Organizational Affiliation

    Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Toluene, o-xylene monooxygenase oxygenase subunit
A
491Pseudomonas stutzeriMutation(s): 0 
Gene Names: touA
Find proteins for O87798 (Pseudomonas stutzeri)
Go to UniProtKB:  O87798
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Toluene, o-xylene monooxygenase oxygenase subunit
B
322Pseudomonas stutzeriMutation(s): 0 
Gene Names: touE
Find proteins for O87802 (Pseudomonas stutzeri)
Go to UniProtKB:  O87802
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
TouB protein
C
83Pseudomonas stutzeriMutation(s): 0 
Gene Names: touB
Find proteins for O87799 (Pseudomonas stutzeri)
Go to UniProtKB:  O87799
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
P6G
Query on P6G

Download SDF File 
Download CCD File 
A
HEXAETHYLENE GLYCOL
POLYETHYLENE GLYCOL PEG400
C12 H26 O7
IIRDTKBZINWQAW-UHFFFAOYSA-N
 Ligand Interaction
FE
Query on FE

Download SDF File 
Download CCD File 
A
FE (III) ION
Fe
VTLYFUHAOXGGBS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.197 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 182.555α = 90.00
b = 182.555β = 90.00
c = 68.111γ = 120.00
Software Package:
Software NamePurpose
EPMRphasing
DENZOdata reduction
SCALEPACKdata scaling
HKL-2000data reduction
REFMACrefinement
Blu-Icedata collection
PDB_EXTRACTdata extraction
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-11-28
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-18
    Type: Refinement description