9O8E | pdb_00009o8e

amyloid fibril of recombinant full-length 2N4R tau complexed with unfractionated mouse liver RNA and seeded by Alzheimer's disease tau fibrils

• PDB DOI: https://doi.org/10.2210/pdb9O8E/pdb
• EM Map EMD-70224: EMDB EMDataResource

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


• Deposited: 2025-04-15 Released: 2026-03-18 
• Deposition Author(s): Jiang, Y.X., Sawaya, M.R., Abskharon, R., Ge, P., Boyer, D.R., Eisenberg, D.S.
• Funding Organization(s): National Institutes of Health/National Institute on Aging (NIH/NIA)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.10 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

Literature

RNA contributes to polymorphism of tau amyloid fibrils

Abskharon, R., Jiang, Y.X., Ge, P., Sawaya, M.R., Zhang, J., Boyer, D.R., Dolinsky, J.L., Cascio, D., Guo, F., Eisenberg, D.S.

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: 234.96 kDa 
• Atom Count: 4,165 
• Modeled Residue Count: 545 
• Deposited Residue Count: 2,245 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Isoform Tau-F of Microtubule-associated protein tau	A, B, C, D, E	449	Homo sapiens	Mutation(s): 0  Gene Names: MAPT, MAPTL, MTBT1, TAU
UniProt & NIH Common Fund Data Resources
Find proteins for P10636 (Homo sapiens) Go to UniProtKB:  P10636
PHAROS:  P10636 GTEx:  ENSG00000186868

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.10 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.21_5207

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2026-03-18 
Deposition Author(s): Jiang, Y.X., Sawaya, M.R., Abskharon, R., Ge, P., Boyer, D.R., Eisenberg, D.S.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute on Aging (NIH/NIA)	United States	R01 AG070895
National Institutes of Health/National Institute on Aging (NIH/NIA)	United States	RF1 AG065407

Revision History  

• Version 1.0: 2026-03-18
  Type: Initial release