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 8K75 | pdb_00008k75

N-terminal domain of FIPV nucleocapsid protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.16 Å
  • R-Value Free: 
    0.184 (Depositor), 0.183 (DCC) 
  • R-Value Work: 
    0.168 (Depositor), 0.172 (DCC) 
  • R-Value Observed: 
    0.168 (Depositor) 

Starting Model: other
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wwPDB Validation 3D Report Full Report

Validation slider image for 8K75

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 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.

Macromolecule Content 

  • Total Structure Weight: 16.62 kDa 
  • Atom Count: 1,213 
  • Modeled Residue Count: 124 
  • Deposited Residue Count: 141 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Nucleoprotein141Feline infectious peritonitis virus (strain 79-1146)Mutation(s): 0 
Gene Names: N, 6
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 (Depositor), 0.183 (DCC) 
  • R-Value Work:  0.168 (Depositor), 0.172 (DCC) 
  • R-Value Observed: 0.168 (Depositor) 
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