9TPT | pdb_00009tpt

Structure of recombinantly assembled E83Q alpha-synuclein fibrils

• PDB DOI: https://doi.org/10.2210/pdb9TPT/pdb
• EM Map EMD-56114: EMDB EMDataResource

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


• Deposited: 2025-12-18 Released: 2026-02-04 
• Deposition Author(s): Shafiei, N., Mohammed, I., Kumar, S.T., Mahul Mellier, A.L., Ekundayo, B., Stahli, D., Lewis, A.J., Stahlberg, H.
• Funding Organization(s): Swiss National Science Foundation

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.43 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

Starting Model: experimental

Literature

Structure of recombinantly assembled E83Q alpha-synuclein fibrils

Shafiei, N., Mohammed, I., Kumar, S.T., Mahul Mellier, A.L., Ekundayo, B., Stahli, D., Lewis, A.J., Stahlberg, H.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 12-mer - A12 

Biological assembly 1 assigned by authors and generated by (software)

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 77.04 kDa 
• Atom Count: 5,352 
• Modeled Residue Count: 774 
• Deposited Residue Count: 780 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Alpha-synuclein	A [auth B], B [auth F], C [auth E], D [auth A], E [auth D], F [auth C], G [auth I], H [auth N], I [auth M], J [auth L], K [auth H], L [auth J]	65	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: ELECTRON MICROSCOPY
• Resolution: 3.43 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	RELION	4.0.0
MODEL REFINEMENT	PHENIX	1.20.1

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2026-02-04 
Deposition Author(s): Shafiei, N., Mohammed, I., Kumar, S.T., Mahul Mellier, A.L., Ekundayo, B., Stahli, D., Lewis, A.J., Stahlberg, H.

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Funding Organization	Location	Grant Number
Swiss National Science Foundation	Switzerland	--

Revision History  

• Version 1.0: 2026-02-04
  Type: Initial release