9K7Q | pdb_00009k7q

Parkinson disease protein 7 (DJ-1) and Alpha-synuclein (Alpha-syn) complex

• PDB DOI: https://doi.org/10.2210/pdb9K7Q/pdb

• Classification: PROTEIN BINDING
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2024-10-24 Released: 2025-10-29 
• Deposition Author(s): Han, C.W., Kim, D.H.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 4.58 Å
• R-Value Free: 
  0.222 (Depositor), 0.290 (DCC) 
• R-Value Work: 
  0.145 (Depositor), 0.193 (DCC) 
• R-Value Observed: 
  0.149 (Depositor) 

Starting Model: experimental

Literature

Parkinson disease protein 7 (DJ-1) and Alpha-synuclein (Alpha-syn) complex

Han, C.W., Kim, D.H., Jang, S.B.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 7-mer - A6B1 Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Homo 6-mer - A6 

Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Homo 6-mer - A6 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: light scattering

Macromolecule Content 

• Total Structure Weight: 127.13 kDa 
• Atom Count: 8,885 
• Modeled Residue Count: 1,214 
• Deposited Residue Count: 1,214 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Parkinson disease protein 7	A, B [auth D], C [auth E], D [auth F], E [auth H], F [auth J]	187	Homo sapiens	Mutation(s): 0  Gene Names: PARK7 EC: 3.1.2 (PDB Primary Data), 3.5.1 (PDB Primary Data), 3.5.1.124 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for Q99497 (Homo sapiens) Explore Q99497  Go to UniProtKB:  Q99497
PHAROS:  Q99497 GTEx:  ENSG00000116288

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Alpha-synuclein	G [auth M]	92	Homo sapiens	Mutation(s): 0  Gene Names: SNCA, NACP, PARK1
UniProt & NIH Common Fund Data Resources
Find proteins for P37840 (Homo sapiens) Explore P37840  Go to UniProtKB:  P37840
PHAROS:  P37840 GTEx:  ENSG00000145335

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 4.58 Å
• R-Value Free:  0.222 (Depositor), 0.290 (DCC) 
• R-Value Work:  0.145 (Depositor), 0.193 (DCC) 
• R-Value Observed: 0.149 (Depositor) 

Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 75.285	α = 89.89
b = 75.274	β = 89.92
c = 75.39	γ = 60.04

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data scaling
HKL-2000	data reduction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-10-29 
Deposition Author(s): Han, C.W., Kim, D.H.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2025-10-29
  Type: Initial release