5EU8

Structure of FIPV main protease in complex with dual inhibitors


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.447 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.211 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal Structure of Feline Infectious Peritonitis Virus Main Protease in Complex with Synergetic Dual Inhibitors

Wang, F.Chen, C.Liu, X.Yang, K.Xu, X.Yang, H.

(2015) J.Virol. 90: 1910-1917

  • DOI: 10.1128/JVI.02685-15

  • PubMed Abstract: 
  • Coronaviruses (CoVs) can cause highly prevalent diseases in humans and animals. Feline infectious peritonitis virus (FIPV) belongs to the genus Alphacoronavirus, resulting in a lethal systemic granulomatous disease called feline infectious peritoniti ...

    Coronaviruses (CoVs) can cause highly prevalent diseases in humans and animals. Feline infectious peritonitis virus (FIPV) belongs to the genus Alphacoronavirus, resulting in a lethal systemic granulomatous disease called feline infectious peritonitis (FIP), which is one of the most important fatal infectious diseases of cats worldwide. No specific vaccines or drugs have been approved to treat FIP. CoV main proteases (M(pro)s) play a pivotal role in viral transcription and replication, making them an ideal target for drug development. Here, we report the crystal structure of FIPV M(pro) in complex with dual inhibitors, a zinc ion and a Michael acceptor. The complex structure elaborates a unique mechanism of two distinct inhibitors synergizing to inactivate the protease, providing a structural basis to design novel antivirals and suggesting the potential to take advantage of zinc as an adjunct therapy against CoV-associated diseases.


    Organizational Affiliation

    School of Life Sciences, Tianjin University, Tianjin, People's Republic of China Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, People's Republic of China.,School of Life Sciences, Tianjin University, Tianjin, People's Republic of China.,Institute of Ageing Research, School of Medicine, Hangzhou Normal University, Hangzhou, China.,School of Life Sciences, Tianjin University, Tianjin, People's Republic of China Tianjin International Joint Academy of Biotechnology and Medicine, Tianjin, People's Republic of China xuxl@hznu.edu.cn yanght@tju.edu.cn.,Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, Ohio, USA.,Institute of Ageing Research, School of Medicine, Hangzhou Normal University, Hangzhou, China xuxl@hznu.edu.cn yanght@tju.edu.cn.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
main protease
A
307Feline coronavirus (strain FIPV WSU-79/1146)Mutation(s): 0 
Gene Names: rep
Find proteins for Q98VG9 (Feline coronavirus (strain FIPV WSU-79/1146))
Go to UniProtKB:  Q98VG9
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
N-[(5-METHYLISOXAZOL-3-YL)CARBONYL]ALANYL-L-VALYL-N~1~-((1R,2Z)-4-(BENZYLOXY)-4-OXO-1-{[(3R)-2-OXOPYRROLIDIN-3-YL]METHYL}BUT-2-ENYL)-L-LEUCINAMIDE
B
6N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.447 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.211 
  • Space Group: I 4 2 2
Unit Cell:
Length (Å)Angle (°)
a = 112.261α = 90.00
b = 112.261β = 90.00
c = 102.102γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
PHENIXrefinement
HKL-2000data scaling
SCALEPACKdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Key Basic Research Program of China (973 program)China2015CB859800
National Natural Science Foundation of ChinaChina31300150
Tianjin Marine Science and Technology ProgramChinaKJXH2014-16

Revision History 

  • Version 1.0: 2015-12-30
    Type: Initial release
  • Version 1.1: 2016-02-10
    Type: Database references