7ZNO

Crystal Structure of Unlinked NS2B_NS3 Protease from Zika Virus in Complex with Boronate Inhibitor MI-2270


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.193 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Boroleucine-Derived Covalent Inhibitors of the ZIKV Protease.

Braun, N.J.Huber, S.Schmacke, L.C.Heine, A.Steinmetzer, T.

(2023) ChemMedChem 18: e202200336-e202200336

  • DOI: https://doi.org/10.1002/cmdc.202200336
  • Primary Citation of Related Structures:  
    7ZNO

  • PubMed Abstract: 

    The Zika virus (ZIKV) remains a potential threat to the public health due to the lack of both an approved vaccination or a specific treatment. In this work, a series of peptidic inhibitors of the ZIKV protease with boroleucine as P1 residue was synthesized. The highest affinities with K i values down to 8 nM were observed for compounds with basic residues in both P2 and P3 position and at the N-terminus. The low potency of reference compounds containing leucine, leucine-amide or isopentylamide as P1 residue suggested a covalent binding mode of the boroleucine-derived inhibitors. This was finally proven by crystal structure determination of the most potent inhibitor from this series in complex with the ZIKV protease.


  • Organizational Affiliation

    Institute of Pharmaceutical Chemistry, Philipps University of Marburg, Marbacher Weg 6, 35032, Marburg, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Serine protease subunit NS2B53Zika virusMutation(s): 0 
UniProt
Find proteins for Q32ZE1 (Zika virus)
Explore Q32ZE1 
Go to UniProtKB:  Q32ZE1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ32ZE1
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Serine protease NS3178Zika virusMutation(s): 0 
EC: 3.4.21.91 (PDB Primary Data), 3.6.1.15 (PDB Primary Data), 3.6.4.13 (PDB Primary Data)
UniProt
Find proteins for Q32ZE1 (Zika virus)
Explore Q32ZE1 
Go to UniProtKB:  Q32ZE1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ32ZE1
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
JQI (Subject of Investigation/LOI)
Query on JQI

Download Ideal Coordinates CCD File 
C [auth B][(1R)-1-[[(2S)-6-azanyl-2-[[(2S)-6-azanyl-2-[2-[3-(4-carbamimidamido-3-oxidanylidene-pentyl)phenyl]ethanoylamino]hexanoyl]amino]hexanoyl]amino]-3-methyl-butyl]boronic acid
C31 H55 B N8 O6
CMFRRGVPVDGVRV-QUCWNPHKSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.193 
  • Space Group: P 43 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.397α = 90
b = 42.397β = 90
c = 215.56γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata scaling
XDSdata reduction
PHASERphasing
Cootmodel building

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Not funded--

Revision History  (Full details and data files)

  • Version 1.0: 2022-06-22
    Type: Initial release
  • Version 1.1: 2022-12-28
    Changes: Database references
  • Version 1.2: 2023-02-15
    Changes: Database references
  • Version 1.3: 2024-02-07
    Changes: Data collection, Refinement description