3CO9

Crystal structure of HCV NS5B polymerase with a novel pyridazinone inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Pyrrolo[1,2-b]pyridazin-2-ones as potent inhibitors of HCV NS5B polymerase.

Ruebsam, F.Webber, S.E.Tran, M.T.Tran, C.V.Murphy, D.E.Zhao, J.Dragovich, P.S.Kim, S.H.Li, L.S.Zhou, Y.Han, Q.Kissinger, C.R.Showalter, R.E.Lardy, M.Shah, A.M.Tsan, M.Patel, R.Lebrun, L.A.Kamran, R.Sergeeva, M.V.Bartkowski, D.M.Nolan, T.G.Norris, D.A.Kirkovsky, L.

(2008) Bioorg.Med.Chem.Lett. 18: 3616-3621

  • DOI: 10.1016/j.bmcl.2008.04.066

  • PubMed Abstract: 
  • Pyrrolo[1,2-b]pyridazin-2-one analogs were discovered as a novel class of inhibitors of genotype 1 HCV NS5B polymerase. Structure-based design led to the discovery of compound 3 k, which displayed potent inhibitory activities in biochemical and repli ...

    Pyrrolo[1,2-b]pyridazin-2-one analogs were discovered as a novel class of inhibitors of genotype 1 HCV NS5B polymerase. Structure-based design led to the discovery of compound 3 k, which displayed potent inhibitory activities in biochemical and replicon assays (IC(50) (1b)<10nM; EC(50) (1b)=12 nM) as well as good stability towards human liver microsomes (HLM t(1/2)>60 min).


    Organizational Affiliation

    Anadys Pharmaceuticals, Inc., 3115 Merryfield Row, San Diego, CA 92121, USA. fruebsam@anadyspharma.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RNA-directed RNA polymerase
A, B
578Hepatitis C virus genotype 1b (isolate BK)Mutation(s): 1 
Find proteins for P26663 (Hepatitis C virus genotype 1b (isolate BK))
Go to UniProtKB:  P26663
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
3MS
Query on 3MS

Download SDF File 
Download CCD File 
A, B
N-{3-[4-hydroxy-1-(3-methylbutyl)-2-oxo-1,2-dihydropyrrolo[1,2-b]pyridazin-3-yl]-1,1-dioxido-2H-1,2,4-benzothiadiazin-7-yl}methanesulfonamide
N-{3-[4-Hydroxy-1-(3-methyl-butyl)-2-oxo-1,2-dihydro-pyrrolo[1,2-b]pyridazin-3-yl]-1,1-dioxo-1,2-dihydro-1lambda6-benzo[1,2,4]thiadiazin-7-yl}-methanesulfonamide
C20 H23 N5 O6 S2
FTVCONULIKITPZ-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
3MSIC50: <10 nM (99) BINDINGDB
3MSEC50: 8.5 nM (99) BINDINGDB
3MSIC50: 10 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.218 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 85.701α = 90.00
b = 106.423β = 90.00
c = 126.431γ = 90.00
Software Package:
Software NamePurpose
EPMRphasing
REFMACrefinement
HKL-2000data scaling
HKL-2000data reduction
HKL-2000data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-02-10
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance