Crystal structure of human E18D DJ-1 in complex with Cu

Experimental Data Snapshot

  • Resolution: 1.48 Å
  • R-Value Free: 0.174 
  • R-Value Work: 0.164 
  • R-Value Observed: 0.164 

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DJ-1 Is a Copper Chaperone Acting on SOD1 Activation.

Girotto, S.Cendron, L.Bisaglia, M.Tessari, I.Mammi, S.Zanotti, G.Bubacco, L.

(2014) J Biol Chem 289: 10887-10899

  • DOI: https://doi.org/10.1074/jbc.M113.535112
  • Primary Citation of Related Structures:  
    4MNT, 4MTC, 4N0M, 4N12

  • PubMed Abstract: 

    Lack of oxidative stress control is a common and often prime feature observed in many neurodegenerative diseases. Both DJ-1 and SOD1, proteins involved in familial Parkinson disease and amyotrophic lateral sclerosis, respectively, play a protective role against oxidative stress. Impaired activity and modified expression of both proteins have been observed in different neurodegenerative diseases. A potential cooperative action of DJ-1 and SOD1 in the same oxidative stress response pathway may be suggested based on a copper-mediated interaction between the two proteins reported here. To investigate the mechanisms underlying the antioxidative function of DJ-1 in relation to SOD1 activity, we investigated the ability of DJ-1 to bind copper ions. We structurally characterized a novel copper binding site involving Cys-106, and we investigated, using different techniques, the kinetics of DJ-1 binding to copper ions. The copper transfer between the two proteins was also examined using both fluorescence spectroscopy and specific biochemical assays for SOD1 activity. The structural and functional analysis of the novel DJ-1 copper binding site led us to identify a putative role for DJ-1 as a copper chaperone. Alteration of the coordination geometry of the copper ion in DJ-1 may be correlated to the physiological role of the protein, to a potential failure in metal transfer to SOD1, and to successive implications in neurodegenerative etiopathogenesis.

  • Organizational Affiliation

    Department of Chemical Sciences, University of Padova, via Marzolo, 1 35131 Padova, Italy; Department of Drug Discovery and Development, Istituto Italiano di Tecnologia, Via Morego, 30 16163 Genoa, Italy.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Protein DJ-1189Homo sapiensMutation(s): 1 
Gene Names: PARK7
EC: 3.4
UniProt & NIH Common Fund Data Resources
Find proteins for Q99497 (Homo sapiens)
Explore Q99497 
Go to UniProtKB:  Q99497
PHAROS:  Q99497
GTEx:  ENSG00000116288 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ99497
Sequence Annotations
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
Query on CSD
Experimental Data & Validation

Experimental Data

  • Resolution: 1.48 Å
  • R-Value Free: 0.174 
  • R-Value Work: 0.164 
  • R-Value Observed: 0.164 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 75.11α = 90
b = 75.11β = 90
c = 75.35γ = 120
Software Package:
Software NamePurpose
ADSCdata collection
PHENIXmodel building
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-03-05
    Type: Initial release
  • Version 1.1: 2014-04-30
    Changes: Database references
  • Version 1.2: 2014-11-12
    Changes: Structure summary