4WQM

Structure of the toluene 4-monooxygenase NADH oxidoreductase T4moF, K270S K271S variant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.62 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.145 
  • R-Value Observed: 0.147 

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This is version 1.5 of the entry. See complete history


Literature

Structure of T4moF, the Toluene 4-Monooxygenase Ferredoxin Oxidoreductase.

Acheson, J.F.Moseson, H.Fox, B.G.

(2015) Biochemistry 54: 5980-5988

  • DOI: https://doi.org/10.1021/acs.biochem.5b00692
  • Primary Citation of Related Structures:  
    4WQM

  • PubMed Abstract: 

    The 1.6 Å crystal structure of toluene 4-monooxygenase reductase T4moF is reported. The structure includes ferredoxin, flavin, and NADH binding domains. The position of the ferredoxin domain relative to the other two domains represents a new configuration for the iron-sulfur flavoprotein family. Close contacts between the C8 methyl group of FAD and [2Fe-2S] ligand Cys36-O represent a plausible pathway for electron transfer between the redox cofactors. Energy-minimized docking of NADH and calculation of hingelike motions between domains suggest how simple coordinated shifts of residues at the C-terminus of the enzyme could expose the N5 position of FAD for productive interaction with the nicotinamide ring. The domain configuration revealed by the T4moF structure provides an excellent steric and electrostatic match to the obligate electron acceptor, Rieske-type [2Fe-2S] ferredoxin T4moC. Protein-protein docking and energy minimization of the T4moFC complex indicate that T4moF [2Fe-2S] ligand Cys41 and T4moC [2Fe-2S] ligand His67, along with other electrostatic interactions between the protein partners, form the functional electron transfer interface.


  • Organizational Affiliation

    Department of Biochemistry, College of Agriculture and Life Sciences, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Toluene-4-monooxygenase electron transfer component326Ectopseudomonas mendocinaMutation(s): 2 
Gene Names: tmoF
EC: 1.18.1.3
UniProt
Find proteins for Q03304 (Pseudomonas mendocina)
Explore Q03304 
Go to UniProtKB:  Q03304
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ03304
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
FAD
Query on FAD

Download Ideal Coordinates CCD File 
C [auth A]FLAVIN-ADENINE DINUCLEOTIDE
C27 H33 N9 O15 P2
VWWQXMAJTJZDQX-UYBVJOGSSA-N
BTB
Query on BTB

Download Ideal Coordinates CCD File 
G [auth A],
H [auth A],
I [auth A]
2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
C8 H19 N O5
OWMVSZAMULFTJU-UHFFFAOYSA-N
FES
Query on FES

Download Ideal Coordinates CCD File 
B [auth A]FE2/S2 (INORGANIC) CLUSTER
Fe2 S2
NIXDOXVAJZFRNF-UHFFFAOYSA-N
NI
Query on NI

Download Ideal Coordinates CCD File 
D [auth A],
E [auth A],
F [auth A],
J [auth A]
NICKEL (II) ION
Ni
VEQPNABPJHWNSG-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.62 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.145 
  • R-Value Observed: 0.147 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 84.334α = 90
b = 69.074β = 116.53
c = 68.224γ = 90
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data collection
PHENIXrefinement
PDB_EXTRACTdata extraction

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Science Foundation (NSF, United States)United StatesMCB-0843239

Revision History  (Full details and data files)

  • Version 1.0: 2015-09-09
    Type: Initial release
  • Version 1.1: 2015-10-07
    Changes: Database references
  • Version 1.2: 2017-09-13
    Changes: Author supporting evidence, Database references, Derived calculations
  • Version 1.3: 2017-09-27
    Changes: Data collection
  • Version 1.4: 2019-11-27
    Changes: Author supporting evidence
  • Version 1.5: 2023-12-27
    Changes: Data collection, Database references, Derived calculations