1VM9

The X-ray Structure of the cys84ala cys85ala double mutant of the [2Fe-2S] Ferredoxin subunit of Toluene-4-Monooxygenase from Pseudomonas Mendocina KR1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.48 Å
  • R-Value Free: 0.176 
  • R-Value Work: 0.155 
  • R-Value Observed: 0.156 

wwPDB Validation   3D Report Full Report


This is version 1.5 of the entry. See complete history


Literature

Structure of T4moC, the Rieske-type ferredoxin component of toluene 4-monooxygenase.

Moe, L.A.Bingman, C.A.Wesenberg, G.E.Phillips, G.N.Fox, B.G.

(2006) Acta Crystallogr D Biol Crystallogr 62: 476-482

  • DOI: https://doi.org/10.1107/S0907444906006056

  • PubMed Abstract: 

    The structure of the Rieske-type ferredoxin (T4moC) from toluene 4-monooxygenase was determined by X-ray crystallography in the [2Fe-2S](2+) state at a resolution of 1.48 A using single-wavelength anomalous dispersion phasing with the [2Fe-2S] center. The structure consists of ten beta-strands arranged into the three antiparallel beta-sheet topology observed in all Rieske proteins. Trp69 of T4moC is adjacent to the [2Fe-2S] centre, which displaces a loop containing the conserved Pro81 by approximately 8 A away from the [2Fe-2S] cluster compared with the Pro loop in the closest structural and functional homolog, the Rieske-type ferredoxin BphF from biphenyl dioxygenase. In addition, T4moC contains five hydrogen bonds to the [2Fe-2S] cluster compared with three hydrogen bonds in BphF. Moreover, the electrostatic surface of T4moC is distinct from that of BphF. These structural differences are identified as possible contributors to the evolutionary specialization of soluble Rieske-type ferredoxins between the diiron monooxygenases and cis-dihydrodiol-forming dioxygenases.


  • Organizational Affiliation

    Department of Biochemistry, University of Wisconsin-Madison, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Toluene-4-monooxygenase system protein C111Ectopseudomonas mendocinaMutation(s): 2 
Gene Names: tmoC
UniProt
Find proteins for Q00458 (Pseudomonas mendocina)
Explore Q00458 
Go to UniProtKB:  Q00458
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ00458
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.48 Å
  • R-Value Free: 0.176 
  • R-Value Work: 0.155 
  • R-Value Observed: 0.156 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 44.51α = 90
b = 52.4β = 90
c = 83.556γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SOLVEphasing
RESOLVEphasing
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
HKL-2000data scaling
ARP/wARPmodel building

Structure Validation

View Full Validation Report



Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2004-09-21
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-04
    Changes: Refinement description
  • Version 1.4: 2021-10-20
    Changes: Database references, Derived calculations
  • Version 1.5: 2023-12-27
    Changes: Data collection