9NAU | pdb_00009nau

CryoEM structure of capsid from human astrovirus 1 in complex with human neonatal Fc receptor

• PDB DOI: https://doi.org/10.2210/pdb9NAU/pdb
• EM Map EMD-49203: EMDB EMDataResource

• Classification: VIRUS
• Organism(s): Human astrovirus 1
• Mutation(s): Yes 


• Deposited: 2025-02-12 Released: 2026-02-18 
• Deposition Author(s): Hall, P.D., Nelson, C.A., Fremont, D.H., Center for Structural Biology of Infectious Diseases (CSBID)
• Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.77 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Starting Model: experimental

Literature

Cryo-EM structure of human astrovirus in complex with the neonatal Fc receptor

Hall, P.D., Nelson, C.A., Adams, L.J., Harshad, I., Molleston, J.M., Bui, D., Baldridge, M.T., Fremont, D.H.

To be published.

Biological Assembly 1  

Global Symmetry: Icosahedral - I  (Explore in 3D)
Global Stoichiometry: Homo 180-mer - A180 

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

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 135.56 kDa 
• Atom Count: 7,495 
• Modeled Residue Count: 992 
• Deposited Residue Count: 1,254 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Capsid polyprotein VP70	A, B, C	418	Human astrovirus 1	Mutation(s): 2
UniProt
Find proteins for O12792 (Human astrovirus-1) Explore O12792  Go to UniProtKB:  O12792

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
K (Subject of Investigation/LOI)	D [auth A]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.77 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-02-18 
Deposition Author(s): Hall, P.D., Nelson, C.A., Fremont, D.H., Center for Structural Biology of Infectious Diseases (CSBID)

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	75N93022C00035
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	T32AI106688
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	T32DK077653

Revision History  

• Version 1.0: 2026-02-18
  Type: Initial release