6Y3B

Crystal Structure of Unlinked NS2B-NS3 Protease from Zika Virus in Complex with Inhibitor MI-2110


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.59 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.162 
  • R-Value Observed: 0.163 

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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Structure-Based Macrocyclization of Substrate Analogue NS2B-NS3 Protease Inhibitors of Zika, West Nile and Dengue viruses.

Braun, N.J.Quek, J.P.Huber, S.Kouretova, J.Rogge, D.Lang-Henkel, H.Cheong, E.Z.K.Chew, B.L.A.Heine, A.Luo, D.Steinmetzer, T.

(2020) ChemMedChem 15: 1439-1452

  • DOI: 10.1002/cmdc.202000237
  • Primary Citation of Related Structures:  
    6Y3B, 6KK3, 6KK2, 6KK5, 6KK4, 6KK6, 6KPQ

  • PubMed Abstract: 
  • A series of cyclic active-site-directed inhibitors of the NS2B-NS3 proteases from Zika (ZIKV), West Nile (WNV), and dengue-4 (DENV4) viruses has been designed. The most potent compounds contain a reversely incorporated d-lysine residue in the P1 position ...

    A series of cyclic active-site-directed inhibitors of the NS2B-NS3 proteases from Zika (ZIKV), West Nile (WNV), and dengue-4 (DENV4) viruses has been designed. The most potent compounds contain a reversely incorporated d-lysine residue in the P1 position. Its side chain is connected to the P2 backbone, its α-amino group is converted into a guanidine to interact with the conserved Asp129 side chain in the S1 pocket, and its C terminus is connected to the P3 residue via different linker segments. The most potent compounds inhibit the ZIKV protease with K i values <5 nM. Crystal structures of seven ZIKV protease inhibitor complexes were determined to support the inhibitor design. All the cyclic compounds possess high selectivity against trypsin-like serine proteases and furin-like proprotein convertases. Both WNV and DENV4 proteases are inhibited less efficiently. Nonetheless, similar structure-activity relationships were observed for these enzymes, thus suggesting their potential application as pan-flaviviral protease inhibitors.


    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Genome polyproteinA53Zika virusMutation(s): 0 
EC: 3.4.21.91 (UniProt), 3.6.1.15 (UniProt), 3.6.4.13 (UniProt), 2.1.1.56 (UniProt), 2.1.1.57 (UniProt), 2.7.7.48 (UniProt)
UniProt
Find proteins for Q32ZE1 (Zika virus)
Explore Q32ZE1 
Go to UniProtKB:  Q32ZE1
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Genome polyproteinB178Zika virusMutation(s): 0 
EC: 3.4.21.91 (UniProt), 3.6.1.15 (UniProt), 3.6.4.13 (UniProt), 2.1.1.56 (UniProt), 2.1.1.57 (UniProt), 2.7.7.48 (UniProt)
UniProt
Find proteins for Q32ZE1 (Zika virus)
Explore Q32ZE1 
Go to UniProtKB:  Q32ZE1
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
O7N (Subject of Investigation/LOI)
Query on O7N

Download Ideal Coordinates CCD File 
D [auth B]1-[(8~{R},15~{S},18~{S})-15,18-bis(4-azanylbutyl)-4,7,14,17,20-pentakis(oxidanylidene)-3,6,13,16,19-pentazabicyclo[20.3.1]hexacosa-1(25),22(26),23-trien-8-yl]guanidine
C30 H50 N10 O5
MJPHQBODCHXACB-VXNXHJTFSA-N
 Ligand Interaction
SO4
Query on SO4

Download Ideal Coordinates CCD File 
E [auth B]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

Download Ideal Coordinates CCD File 
C [auth B]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.59 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.162 
  • R-Value Observed: 0.163 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 48.626α = 90
b = 60.493β = 90
c = 83.139γ = 90
Software Package:
Software NamePurpose
XDSdata scaling
XDSdata reduction
PHASERphasing
Cootmodel building
PHENIXrefinement

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-07-08
    Type: Initial release
  • Version 1.1: 2020-08-19
    Changes: Database references