7ZTW

Crystal Structure of Human Parechovirus 1 2A protein

• PDB DOI: https://doi.org/10.2210/pdb7ZTW/pdb

• Classification: VIRAL PROTEIN
• Organism(s): parechovirus A1
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2022-05-11 Released: 2023-05-24 
• Deposition Author(s): von Castelmur, E., Perrakis, A.
• Funding Organization(s): Netherlands Organisation for Scientific Research (NWO)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.93 Å
• R-Value Free: 0.238 
• R-Value Work: 0.184 
• R-Value Observed: 0.187 

Literature

Human Parechovirus 1 2A protein

von Castelmur, E., Perrakis, A.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Biological Assembly Evidence: light scattering

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 68.2 kDa 
• Atom Count: 4,707 
• Modelled Residue Count: 566 
• Deposited Residue Count: 600 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Protein 2A	A, B, C, D	150	parechovirus A1	Mutation(s): 1
UniProt
Find proteins for Q66578 (Human parechovirus 1 (strain Harris)) Explore Q66578  Go to UniProtKB:  Q66578

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ACT	G [auth D]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M
NA	E [auth A], F [auth C]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.93 Å
• R-Value Free: 0.238 
• R-Value Work: 0.184 
• R-Value Observed: 0.187 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.548	α = 90
b = 127.805	β = 95.19
c = 54.282	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-05-24 
Deposition Author(s): von Castelmur, E., Perrakis, A.

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Funding Organization	Location	Grant Number
Netherlands Organisation for Scientific Research (NWO)	Netherlands	--

Revision History  

• Version 1.0: 2023-05-24
  Type: Initial release
  
• Version 1.1: 2024-06-19
  Changes: Data collection