3CVK

Crystal structure of HCV NS5B polymerase with a novel pyridazinone inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.31 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.207 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Hexahydro-pyrrolo- and hexahydro-1H-pyrido[1,2-b]pyridazin-2-ones as potent inhibitors of HCV NS5B polymerase.

Ruebsam, F.Sun, Z.Ayida, B.K.Webber, S.E.Zhou, Y.Zhao, Q.Kissinger, C.R.Showalter, R.E.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: 5002-5005

  • DOI: 10.1016/j.bmcl.2008.08.017

  • PubMed Abstract: 
  • Hexahydro-pyrrolo- and hexahydro-1H-pyrido[1,2-b]pyridazin-2-one analogs were discovered as a novel class of inhibitors of genotype 1 HCV NS5B polymerase. Among these, compound 4c displayed potent inhibitory activities in biochemical and replicon ass ...

    Hexahydro-pyrrolo- and hexahydro-1H-pyrido[1,2-b]pyridazin-2-one analogs were discovered as a novel class of inhibitors of genotype 1 HCV NS5B polymerase. Among these, compound 4c displayed potent inhibitory activities in biochemical and replicon assays (IC(50) (1b) <10 nM; EC(50) (1b)=34 nM) as well as good stability towards human liver microsomes (HLM t(1/2) =59 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 1bMutation(s): 1 
Find proteins for P26663 (Hepatitis C virus genotype 1b)
Go to UniProtKB:  P26663
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
N34
Query on N34

Download SDF File 
Download CCD File 
A, B
N-{3-[1-(3,3-Dimethyl-butyl)-4-hydroxy-2-oxo-1,2,4a,5,6,7-hexahydro-pyrrolo[1,2-b]pyridazin-3-yl]-1,1-dioxo-1,2-dihydro-1lambda6-benzo[1,2,4]thiadiazin-7-yl}-methanesulfonamide
N-{3-[(4aS)-1-(3,3-dimethylbutyl)-4-hydroxy-2-oxo-1,2,4a,5,6,7-hexahydropyrrolo[1,2-b]pyridazin-3-yl]-1,1-dioxido-2H-1,2,4-benzothiadiazin-7-yl}methanesulfonamide
C21 H29 N5 O6 S2
OCQGEVFPTYSQCK-HNNXBMFYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
N34IC50: <10 nM BINDINGMOAD
N34IC50: 10 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.31 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.207 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 86.302α = 90.00
b = 106.258β = 90.00
c = 126.225γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
CrystalCleardata collection
REFMACrefinement
HKL-2000data reduction
EPMRphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-04-21
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance