4BTE

DJ-1 Cu(I) complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.38 Å
  • R-Value Free: 0.150 
  • R-Value Work: 0.118 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of Cu(I)-Bound Dj-1 Reveals a Biscysteinate Metal Binding Site at the Homodimer Interface: Insights Into Mutational Inactivation of Dj-1 in Parkinsonism.

Puno, M.R.Patel, N.A.Moller, S.G.Robinson, C.V.Moody, P.C.E.Odell, M.

(2013) J.Am.Chem.Soc. 135: 15974

  • DOI: 10.1021/ja406010m

  • PubMed Abstract: 
  • The Parkinsonism-associated protein DJ-1 has been suggested to activate the Cu-Zn superoxide dismutase (SOD1) by providing its copper cofactor. The structural and chemical means by which DJ-1 could support this function is unknown. In this study, we ...

    The Parkinsonism-associated protein DJ-1 has been suggested to activate the Cu-Zn superoxide dismutase (SOD1) by providing its copper cofactor. The structural and chemical means by which DJ-1 could support this function is unknown. In this study, we characterize the molecular interaction of DJ-1 with Cu(I). Mass spectrometric analysis indicates binding of one Cu(I) ion per DJ-1 homodimer. The crystal structure of DJ-1 bound to Cu(I) confirms metal coordination through a docking accessible biscysteinate site formed by juxtaposed cysteine residues at the homodimer interface. Spectroscopy in crystallo validates the identity and oxidation state of the bound metal. The measured subfemtomolar dissociation constant (Kd = 6.41 × 10(-16) M) of DJ-1 for Cu(I) supports the physiological retention of the metal ion. Our results highlight the requirement of a stable homodimer for copper binding by DJ-1. Parkinsonism-linked mutations that weaken homodimer interactions will compromise this capability.


    Organizational Affiliation

    Department of Molecular and Applied Biosciences, University of Westminster , 115 New Cavendish Street, London W1W 6UW, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN DJ-1
A
189Homo sapiensMutation(s): 0 
Gene Names: PARK7
EC: 3.1.2.-, 3.5.1.-, 3.5.1.124
Find proteins for Q99497 (Homo sapiens)
Go to Gene View: PARK7
Go to UniProtKB:  Q99497
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CU1
Query on CU1

Download SDF File 
Download CCD File 
A
COPPER (I) ION
Cu
VMQMZMRVKUZKQL-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.38 Å
  • R-Value Free: 0.150 
  • R-Value Work: 0.118 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 75.257α = 90.00
b = 75.257β = 90.00
c = 75.354γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
XDSdata reduction
REFMACrefinement
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-11-06
    Type: Initial release
  • Version 1.1: 2013-12-25
    Type: Database references