9LI1 | pdb_00009li1

Cryo-EM structure of human SOD1 (G93A) amyloid filament

• PDB DOI: https://doi.org/10.2210/pdb9LI1/pdb
• EM Map EMD-63109: EMDB EMDataResource

• Classification: PROTEIN FIBRIL
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2025-01-13 Released: 2026-01-28 
• Deposition Author(s): Baek, Y., Ha, N.-C.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 4.74 Å
• Aggregation State: HELICAL ARRAY 
• Reconstruction Method: HELICAL 

Starting Model: experimental

Literature

Amyloid filament structure of human G93A mutant SOD1

Baek, Y., Kim, H., Lee, H., Lee, H., Roh, S.-H., Ha, N.-C.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 50.16 kDa 
• Atom Count: 1,743 
• Modeled Residue Count: 240 
• Deposited Residue Count: 483 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Superoxide dismutase [Cu-Zn]	A, B, C	161	Homo sapiens	Mutation(s): 1  Gene Names: SOD1 EC: 1.15.1.1
UniProt & NIH Common Fund Data Resources
Find proteins for P00441 (Homo sapiens) Explore P00441  Go to UniProtKB:  P00441
PHAROS:  P00441 GTEx:  ENSG00000142168

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 4.74 Å
• Aggregation State: HELICAL ARRAY 
• Reconstruction Method: HELICAL 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.21.2_5419
RECONSTRUCTION	RELION	5.0

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2026-01-28 
Deposition Author(s): Baek, Y., Ha, N.-C.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2026-01-28
  Type: Initial release