8IZT | pdb_00008izt

Crystal structure of the N-terminal domain (residues 1-121) of MPXV A7

• PDB DOI: https://doi.org/10.2210/pdb8IZT/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Monkeypox virus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2023-04-08 Released: 2024-04-17 
• Deposition Author(s): Ni, X.C., Lei, J.
• Funding Organization(s): Ministry of Science and Technology (MoST, China)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.74 Å
• R-Value Free: 
  0.206 (Depositor), 0.185 (DCC) 
• R-Value Work: 
  0.172 (Depositor) 

Starting Model: experimental

Literature

Structural analysis of conformational changes in the mpox virus A7 protein.

Ni, X., Wang, K., Han, Y., Lei, J.

(2024) Virol Sin 39: 331-334

• PubMed: 38159644 
• DOI: https://doi.org/10.1016/j.virs.2023.12.006
• Primary Citation Related Structures: 
  8IZT, 8IZU


• PubMed Abstract: 
  

  • Phospholipid-binding abilities of mpox virus A7 protein and its truncations are investigated. • The structures of the N-terminal truncations of A7 protein (A7N ₁₂₁ and A7N ₁₃₇ ) are determined. • Conformational changes of the conserved linking helix in A7 are illustrated. • A structural model of the full-length A7 protein is proposed.

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Organizational Affiliation: 
• National Clinical Research Center for Geriatrics, and State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China.
National Clinical Research Center for Geriatrics, and State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China. Electronic address: [e-mail].

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 14.41 kDa 
• Atom Count: 1,150 
• Modeled Residue Count: 123 
• Deposited Residue Count: 124 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Virion morphogenesis protein OPG132	A	124	Monkeypox virus	Mutation(s): 0  Gene Names: OPG132, MPXVgp117
UniProt
Find proteins for A0A7H0DNA4 (Monkeypox virus) Explore A0A7H0DNA4  Go to UniProtKB:  A0A7H0DNA4

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN	B [auth A], C [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.74 Å
• R-Value Free:  0.206 (Depositor), 0.185 (DCC) 
• R-Value Work:  0.172 (Depositor) 

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 75.95	α = 90
b = 31.263	β = 112.342
c = 49.838	γ = 90

Software Package:

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

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2024-04-17 
Deposition Author(s): Ni, X.C., Lei, J.

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Funding Organization	Location	Grant Number
Ministry of Science and Technology (MoST, China)	China	2021YFF0702004

Revision History  

• Version 1.0: 2024-04-17
  Type: Initial release
  
• Version 1.1: 2024-05-22
  Changes: Database references