9BDM | pdb_00009bdm

Cryo-EM structure of cardiac amyloid fibril from a variant ATTRV122delta, single filament morphology

• PDB DOI: https://doi.org/10.2210/pdb9BDM/pdb
• EM Map EMD-44462: EMDB EMDataResource

• Classification: PROTEIN FIBRIL
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 2024-04-12 Released: 2025-10-15 
• Deposition Author(s): Nguyen, B.A., Ahmed, Y., Saelices, L.
• Funding Organization(s): National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI), American Heart Association, Welch Foundation

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.63 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

Starting Model: experimental

Literature

Cryo-EM structure of cardiac amyloid fibril from a variant ATTRV122delta, single filament morphology

Nguyen, B.A., Ahmed, Y., Saelices, L.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 5-mer - A5 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 68.39 kDa 
• Atom Count: 3,535 
• Modeled Residue Count: 450 
• Deposited Residue Count: 630 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Transthyretin	A, B, C, D, E	126	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P02766 (Homo sapiens) Explore P02766  Go to UniProtKB:  P02766
PHAROS:  P02766 GTEx:  ENSG00000118271

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.63 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	RELION	4.1
MODEL REFINEMENT	PHENIX	1.20.1

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-10-15 
Deposition Author(s): Nguyen, B.A., Ahmed, Y., Saelices, L.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)	United States	DP2-HL163810
American Heart Association	United States	847236
Welch Foundation	United States	I-2121-20220331

Revision History  

• Version 1.0: 2025-10-15
  Type: Initial release