9BDR | pdb_00009bdr

Cryo-EM structure of cardiac amyloid fibril from a variant ATTRV122delta, double filament morphology 1

PDB DOI: https://doi.org/10.2210/pdb9BDR/pdb
EM Map EMD-44466: 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

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 3.82 Å
Aggregation State: FILAMENT
Reconstruction Method: HELICAL

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

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This is version 1.1 of the entry. See complete history.

Literature

Amyloid fibril polymorphism in the heart and liver of a patient with polyneuropathic ATTRv-V122 Delta amyloidosis

Ahmed, Y., Nguyen, B.A., Kelly, C., Afrin, S., Singh, V., Evers, B.M., Shelton, J.M., Lopez Escobar, C., Singh, P., Pedretti, R., Wang, L., Bassett, P., Fernandez-Ramirez, M.D.C., Pekala, M., Lemoff, A., Kluve-Beckerman, B., Saelices, L.

(2026) Commun Biol

DOI: https://doi.org/10.1038/s42003-026-09919-x

Macromolecule Content

Total Structure Weight: 136.78 kDa
Atom Count: 7,030
Modeled Residue Count: 895
Deposited Residue Count: 1,260
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Transthyretin	A [auth C] B [auth D] C [auth B] D [auth E] E [auth A] A [auth C], B [auth D], C [auth B], D [auth E], E [auth A], F [auth I], G, H [auth F], I [auth H], J	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
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P02766
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 3.82 Å
Aggregation State: FILAMENT
Reconstruction Method: HELICAL

EM Software:

Task	Software Package	Version
RECONSTRUCTION	RELION	4.0
MODEL REFINEMENT	PHENIX	1.20.1

Structure Validation

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Entry History

& Funding Information

Deposition Data

Released Date: 2025-10-15

Deposition Author(s):

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 (Full details and data files)

Version 1.0: 2025-10-15
Type: Initial release
Version 1.1: 2026-04-29
Changes: Data collection, Database references

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.