1O96

Structure of electron transferring flavoprotein for Methylophilus methylotrophus.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.212 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Extensive Conformational Sampling in a Ternary Electron Transfer Complex.

Leys, D.Basran, J.Talfournier, F.Sutcliffe, M.J.Scrutton, N.S.

(2003) Nat.Struct.Mol.Biol. 10: 219

  • DOI: 10.1038/nsb894
  • Primary Citation of Related Structures:  1O94, 1O95, 1O97

  • PubMed Abstract: 
  • Here we report the crystal structures of a ternary electron transfer complex showing extensive motion at the protein interface. This physiological complex comprises the iron-sulfur flavoprotein trimethylamine dehydrogenase and electron transferring f ...

    Here we report the crystal structures of a ternary electron transfer complex showing extensive motion at the protein interface. This physiological complex comprises the iron-sulfur flavoprotein trimethylamine dehydrogenase and electron transferring flavoprotein (ETF) from Methylophilus methylotrophus. In addition, we report the crystal structure of free ETF. In the complex, electron density for the FAD domain of ETF is absent, indicating high mobility. Positions for the FAD domain are revealed by molecular dynamics simulation, consistent with crystal structures and kinetic data. A dual interaction of ETF with trimethylamine dehydrogenase provides for dynamical motion at the protein interface: one site acts as an anchor, thereby allowing the other site to sample a large range of interactions, some compatible with rapid electron transfer. This study establishes the role of conformational sampling in multi-domain redox systems, providing insight into electron transfer between ETFs and structurally distinct redox partners.


    Organizational Affiliation

    Department of Biochemistry, University of Leicester, University Road, Leicester LE1 7RH, UK. dl37@le.ac.uk




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ELECTRON TRANSFERRING FLAVOPROTEIN BETA-SUBUNIT
A, C, E, Q
264Methylophilus methylotrophusGene Names: etfB
Find proteins for P53570 (Methylophilus methylotrophus)
Go to UniProtKB:  P53570
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
ELECTRON TRANSFERRING FLAVOPROTEIN ALPHA-SUBUNIT
B, D, F, Z
320Methylophilus methylotrophusGene Names: etfA
Find proteins for P53571 (Methylophilus methylotrophus)
Go to UniProtKB:  P53571
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FAD
Query on FAD

Download SDF File 
Download CCD File 
B, D, F, Z
FLAVIN-ADENINE DINUCLEOTIDE
C27 H33 N9 O15 P2
VWWQXMAJTJZDQX-UYBVJOGSSA-N
 Ligand Interaction
AMP
Query on AMP

Download SDF File 
Download CCD File 
A, C, E, Q
ADENOSINE MONOPHOSPHATE
C10 H14 N5 O7 P
UDMBCSSLTHHNCD-KQYNXXCUSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.212 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 117.516α = 90.00
b = 126.877β = 90.00
c = 221.390γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-02-06
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance