3H5S

Hepatitis C virus polymerase NS5B with saccharin inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.205 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Non-nucleoside inhibitors of HCV polymerase NS5B. Part 4: structure-based design, synthesis, and biological evaluation of benzo[d]isothiazole-1,1-dioxides

de Vicente, J.Hendricks, R.T.Smith, D.B.Fell, J.B.Fischer, J.Spencer, S.R.Stengel, P.J.Mohr, P.Robinson, J.E.Blake, J.F.Hilgenkamp, R.K.Yee, C.Adjabeng, G.Elworthy, T.R.Li, J.Wang, B.Bamberg, J.T.Harris, S.F.Wong, A.Leveque, V.J.Najera, I.Le Pogam, S.Rajyaguru, S.Ao-Ieong, G.Alexandrova, L.Larrabee, S.Brandl, M.Briggs, A.Sukhtankar, S.Farrell, R.

(2009) Bioorg Med Chem Lett 19: 5652-5656

  • DOI: 10.1016/j.bmcl.2009.08.022
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • A series of benzo[d]isothiazole-1,1-dioxides were designed and evaluated as inhibitors of HCV polymerase NS5B. Structure-based design led to the incorporation of a high affinity methyl sulfonamide group. Structure-activity relationship (SAR) studies ...

    A series of benzo[d]isothiazole-1,1-dioxides were designed and evaluated as inhibitors of HCV polymerase NS5B. Structure-based design led to the incorporation of a high affinity methyl sulfonamide group. Structure-activity relationship (SAR) studies of this series revealed analogues with submicromolar potencies in the HCV replicon assay and moderate pharmacokinetic properties. SAR studies combined with structure based drug design focused on the sulfonamide region led to a novel and potent cyclic analogue.


    Organizational Affiliation

    Roche Palo Alto LLC, 3431 Hillview Avenue, Palo Alto, CA 94304, USA. javier.devicente@roche.com



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RNA-directed RNA polymerase
A, B
576Hepatitis C virus (isolate BK)Mutation(s): 0 
Gene Names: NS5B
EC: 2.7.7.48 (PDB Primary Data), 3.4.22 (UniProt), 3.4.21.98 (UniProt), 3.6.1.15 (UniProt), 3.6.4.13 (UniProt)
Find proteins for P26663 (Hepatitis C virus genotype 1b (isolate BK))
Go to UniProtKB:  P26663
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
H5S
Query on H5S

Download CCD File 
A, B
(5S)-5-tert-butyl-1-(4-fluoro-3-methylbenzyl)-4-hydroxy-3-[8-(methylsulfonyl)-1,1-dioxido-6,7,8,9-tetrahydroisothiazolo[4,5-h]isoquinolin-3-yl]-1,5-dihydro-2H-pyrrol-2-one
C27 H30 F N3 O6 S2
YRWZNTIWOPXYQZ-RUZDIDTESA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
H5SIC50 :  5   nM  PDBBind
H5SIC50:  5   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.205 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 85.631α = 90
b = 105.803β = 90
c = 125.632γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2009-04-22 
  • Released Date: 2009-09-08 
  • Deposition Author(s): Harris, S.F., Wong, A.

Revision History 

  • Version 1.0: 2009-09-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance