8K75

N-terminal domain of FIPV nucleocapsid protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.16 Å
  • R-Value Free: 0.184 
  • R-Value Work: 0.168 
  • R-Value Observed: 0.168 

Starting Model: other
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wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Identification of novel broad-spectrum antiviral drugs targeting the N-terminal domain of the FIPV nucleocapsid protein.

Zhang, J.Fan, X.Wang, P.Liang, R.Wang, D.Xu, J.Zhang, D.Xie, Y.Liao, Q.Jiao, Z.Shi, Y.Peng, G.

(2024) Int J Biol Macromol 279: 135352-135352

  • DOI: https://doi.org/10.1016/j.ijbiomac.2024.135352
  • Primary Citation of Related Structures:  
    8K75

  • PubMed Abstract: 

    Coronaviruses pose serious threats to human and animal health worldwide, of which their structural nucleocapsid (N) proteins play multiple key roles in viral replication. However, the structures of animal coronavirus N proteins are poorly understood, posing challenges for research on their functions and pathogenic mechanisms as well as the development of N protein-based antiviral drugs. Therefore, N proteins must be further explored as potential antiviral targets. We determined the structure of the NNTD of feline infectious peritonitis virus (FIPV) and identified 3,6-dihydroxyflavone (3,6- DHF) as an effective N protein inhibitor. 3,6-DHF successfully inhibited FIPV replication in CRFK cells, showing broad-spectrum activity and effectiveness against drugresistant strains. Our study provides important insights for developing novel broadspectrum anti-coronavirus drugs and treating infections caused by drug-resistant mutant strains.


  • Organizational Affiliation

    National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China; Hongshan Laboratory, Wuhan, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Nucleoprotein141Feline infectious peritonitis virus (strain 79-1146)Mutation(s): 0 
Gene Names: N6
UniProt
Find proteins for P25909 (Feline coronavirus (strain FIPV WSU-79/1146))
Explore P25909 
Go to UniProtKB:  P25909
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP25909
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.16 Å
  • R-Value Free: 0.184 
  • R-Value Work: 0.168 
  • R-Value Observed: 0.168 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 28.768α = 90
b = 60.9β = 97.92
c = 35.621γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data scaling
PHENIXphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China--

Revision History  (Full details and data files)

  • Version 1.0: 2024-07-31
    Type: Initial release
  • Version 1.1: 2024-10-30
    Changes: Database references, Structure summary