3LKZ

Structural and functional analyses of a conserved hydrophobic pocket of flavivirus methyltransferase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.229 

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Ligand Structure Quality Assessment 


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Literature

Structural and functional analyses of a conserved hydrophobic pocket of flavivirus methyltransferase.

Dong, H.Liu, L.Zou, G.Zhao, Y.Li, Z.Lim, S.P.Shi, P.Y.Li, H.

(2010) J Biol Chem 285: 32586-32595

  • DOI: 10.1074/jbc.M110.129197
  • Primary Citation of Related Structures:  
    3LKZ

  • PubMed Abstract: 
  • The flavivirus methyltransferase (MTase) sequentially methylates the N7 and 2'-O positions of the viral RNA cap (GpppA-RNA → m(7)GpppA-RNA → m(7)GpppAm-RNA), using S-adenosyl-l-methionine (AdoMet) as a methyl donor. We report here that sinefungin (SIN), an AdoMet analog, inhibits several flaviviruses through suppression of viral MTase ...

    The flavivirus methyltransferase (MTase) sequentially methylates the N7 and 2'-O positions of the viral RNA cap (GpppA-RNA → m(7)GpppA-RNA → m(7)GpppAm-RNA), using S-adenosyl-l-methionine (AdoMet) as a methyl donor. We report here that sinefungin (SIN), an AdoMet analog, inhibits several flaviviruses through suppression of viral MTase. The crystal structure of West Nile virus MTase in complex with SIN inhibitor at 2.0-Å resolution revealed a flavivirus-conserved hydrophobic pocket located next to the AdoMet-binding site. The pocket is functionally critical in the viral replication and cap methylations. In addition, the N7 methylation efficiency was found to correlate with the viral replication ability. Thus, SIN analogs with modifications that interact with the hydrophobic pocket are potential specific inhibitors of flavivirus MTase.


    Organizational Affiliation

    Wadsworth Center, New York State Department of Health, Albany, New York 12201, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Non-structural protein 5A, B321West Nile virusMutation(s): 0 
Gene Names: Non-structural protein 5
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 Q9Q6P4 (West Nile virus (strain NY-99))
Explore Q9Q6P4 
Go to UniProtKB:  Q9Q6P4
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9Q6P4
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SFG
Query on SFG

Download Ideal Coordinates CCD File 
C [auth A],
E [auth B]
SINEFUNGIN
C15 H23 N7 O5
LMXOHSDXUQEUSF-YECHIGJVSA-N
 Ligand Interaction
GOL
Query on GOL

Download Ideal Coordinates CCD File 
D [auth A],
F [auth B]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
SFG PDBBind:  3LKZ IC50: 700 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.229 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 39.363α = 112.01
b = 65.74β = 102.65
c = 77.119γ = 90.19
Software Package:
Software NamePurpose
HKL-2000data collection
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
CNSphasing

Structure Validation

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Ligand Structure Quality Assessment 



Entry History 

Deposition Data

  • Deposited Date: 2010-01-28 
  • Released Date: 2010-08-04 
  • Deposition Author(s): Liu, L.H., Li, H.M.

Revision History  (Full details and data files)

  • Version 1.0: 2010-08-04
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance