5J93

Five minutes iron loaded Rana Catesbeiana H' ferritin variant E57A/E136A/D140A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.1 Å
  • R-Value Free: 0.143 
  • R-Value Work: 0.130 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Ferroxidase Activity in Eukaryotic Ferritin is Controlled by Accessory-Iron-Binding Sites in the Catalytic Cavity.

Bernacchioni, C.Pozzi, C.Di Pisa, F.Mangani, S.Turano, P.

(2016) Chemistry 22: 16213-16219

  • DOI: 10.1002/chem.201602842
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Ferritins are iron-storage nanocage proteins that catalyze the oxidation of Fe2+ to Fe3+ at ferroxidase sites. By a combination of structural and spectroscopic techniques, Asp140, together with previously identified Glu57 and Glu136, is demonstrated ...

    Ferritins are iron-storage nanocage proteins that catalyze the oxidation of Fe2+ to Fe3+ at ferroxidase sites. By a combination of structural and spectroscopic techniques, Asp140, together with previously identified Glu57 and Glu136, is demonstrated to be an essential residue to promote the iron oxidation at the ferroxidase site. However, the presence of these three carboxylate moieties in close proximity to the catalytic centers is not essential to achieve binding of the Fe2+ substrate to the diferric ferroxidase sites with the same coordination geometries as in the wild-type cages.


    Organizational Affiliation

    CERM and Department of Chemistry, University of Florence, Via Sacconi 6 Sesto Fiorentino, Firenze, 50019, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ferritin, middle subunit
A
176Lithobates catesbeianaMutation(s): 3 
EC: 1.16.3.1
Find proteins for P07798 (Lithobates catesbeiana)
Go to UniProtKB:  P07798
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

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A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
MG
Query on MG

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Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
FE2
Query on FE2

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Download CCD File 
A
FE (II) ION
Fe
CWYNVVGOOAEACU-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.1 Å
  • R-Value Free: 0.143 
  • R-Value Work: 0.130 
  • Space Group: F 4 3 2
Unit Cell:
Length (Å)Angle (°)
a = 183.782α = 90.00
b = 183.782β = 90.00
c = 183.782γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
REFMACrefinement
SCALAdata scaling
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-10-05
    Type: Initial release
  • Version 1.1: 2016-11-02
    Type: Database references
  • Version 1.2: 2018-01-31
    Type: Database references