2A1U

Crystal structure of the human ETF E165betaA mutant

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.11 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.183 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history. 


Literature

Stabilization of Non-productive Conformations Underpins Rapid Electron Transfer to Electron-transferring Flavoprotein

Toogood, H.S., van Thiel, A., Scrutton, N.S., Leys, D.

(2005) J Biol Chem 280: 30361-30366

  • DOI: 10.1074/jbc.M505562200
  • Primary Citation of Related Structures:  
    2A1U, 2A1T

  • PubMed Abstract: 

    • Crystal structures of protein complexes with electron-transferring flavoprotein (ETF) have revealed a dual protein-protein interface with one region serving as anchor while the ETF FAD domain samples available space within the complex. We show that mutat ...

    Crystal structures of protein complexes with electron-transferring flavoprotein (ETF) have revealed a dual protein-protein interface with one region serving as anchor while the ETF FAD domain samples available space within the complex. We show that mutation of the conserved Glu-165beta in human ETF leads to drastically modulated rates of interprotein electron transfer with both medium chain acyl-CoA dehydrogenase and dimethylglycine dehydrogenase. The crystal structure of free E165betaA ETF is essentially identical to that of wild-type ETF, but the crystal structure of the E165betaA ETF.medium chain acyl-CoA dehydrogenase complex reveals clear electron density for the FAD domain in a position optimal for fast interprotein electron transfer. Based on our observations, we present a dynamic multistate model for conformational sampling that for the wild-type ETF. medium chain acyl-CoA dehydrogenase complex involves random motion between three distinct positions for the ETF FAD domain. ETF Glu-165beta plays a key role in stabilizing positions incompatible with fast interprotein electron transfer, thus ensuring high rates of complex dissociation.

    Organizational Affiliation: 

    Department of Biochemistry, University of Leicester, Henry Wellcome Building, Lancaster Road, LE1 7RH, Leicester United Kingdom.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Electron transfer flavoprotein alpha-subunit, mitochondrial precursor A333Homo sapiensMutation(s): 0 
Gene Names: ETFA
Find proteins for P13804 (Homo sapiens)
Explore P13804 
Go to UniProtKB:  P13804
NIH Common Fund Data Resources
PHAROS:  P13804
GTEx:  ENSG00000140374
Protein Feature View
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  • Reference Sequence
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Electron transfer flavoprotein beta-subunit B255Homo sapiensMutation(s): 1 
Gene Names: ETFB, FP585
Find proteins for P38117 (Homo sapiens)
Explore P38117 
Go to UniProtKB:  P38117
NIH Common Fund Data Resources
PHAROS:  P38117
GTEx:  ENSG00000105379
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FAD
Query on FAD
Download Ideal Coordinates CCD File 
A
FLAVIN-ADENINE DINUCLEOTIDE
C27 H33 N9 O15 P2
VWWQXMAJTJZDQX-UYBVJOGSSA-N		 Ligand Interaction
AMP
Query on AMP
Download Ideal Coordinates CCD File 
B
ADENOSINE MONOPHOSPHATE
C10 H14 N5 O7 P
UDMBCSSLTHHNCD-KQYNXXCUSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.11 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.183 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.086α = 90
b = 62.869β = 90
c = 174.3γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-07-05
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-10-03
    Changes: Data collection