1H1O

Acidithiobacillus ferrooxidans cytochrome c4 structure supports a complex-induced tuning of electron transfer


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.13 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.239 
  • R-Value Observed: 0.239 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

The Structure of Acidithiobacillus Ferrooxidans C(4)-Cytochrome. A Model for Complex-Induced Electron Transfer Tuning

Abergel, C.Nitschke, W.Malarte, G.Bruschi, M.Claverie, J.-M.Guidici-Orticoni, M.-T.

(2003) Structure 11: 547

  • DOI: https://doi.org/10.1016/s0969-2126(03)00072-8
  • Primary Citation of Related Structures:  
    1H1O

  • PubMed Abstract: 

    The study of electron transfer between the copper protein rusticyanin (RCy) and the c(4)-cytochrome CYC(41) of the acidophilic bacterium Acidithiobacillus ferrooxidans has evidenced a remarkable decrease of RCy's redox potential upon complex formation. The structure of the CYC(41) obtained at 2.2 A resolution highlighted a specific glutamate residue (E121) involved in zinc binding as potentially playing a central role in this effect, required for the electron transfer to occur. EPR and stopped-flow experiments confirmed the strong inhibitory effect of divalent cations on CYC(41):RCy complex formation. A docking analysis of the CYC(41) and RCy structure allows us to propose a detailed model for the complex-induced tuning of electron transfer in agreement with our experimental data, which could be representative of other copper proteins involved in electron transfer.


  • Organizational Affiliation

    Information Génomique et Structurale, UPR 2589, Institut de Biologie Structurale et Microbiologie, 31 Chemin Joseph Aiguier, 13402 20, Marseille cedex, France. chantal.abergel@igs.cnrs-mrs.fr


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
CYTOCHROME C-552
A, B
183Acidithiobacillus ferrooxidansMutation(s): 0 
UniProt
Find proteins for P74917 (Acidithiobacillus ferridurans)
Explore P74917 
Go to UniProtKB:  P74917
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP74917
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download Ideal Coordinates CCD File 
C [auth A],
D [auth A],
J [auth B],
K [auth B]
PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
SO4
Query on SO4

Download Ideal Coordinates CCD File 
E [auth A],
L [auth B]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
GOL
Query on GOL

Download Ideal Coordinates CCD File 
I [auth B]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
ZN
Query on ZN

Download Ideal Coordinates CCD File 
F [auth A]
G [auth A]
H [auth A]
M [auth B]
N [auth B]
F [auth A],
G [auth A],
H [auth A],
M [auth B],
N [auth B],
O [auth B]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.13 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.239 
  • R-Value Observed: 0.239 
  • Space Group: P 64 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 100.049α = 90
b = 100.049β = 90
c = 149.668γ = 120
Software Package:
Software NamePurpose
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling
SOLVEphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-07-17
    Type: Initial release
  • Version 1.1: 2011-10-12
    Changes: Derived calculations, Non-polymer description, Other, Version format compliance