4TLR

NS5b in complex with lactam-thiophene carboxylic acids

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.86 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.166 
  • R-Value Observed: 0.168 

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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history. 


Literature

Design and synthesis of lactam-thiophene carboxylic acids as potent hepatitis C virus polymerase inhibitors.

Barnes-Seeman, D., Boiselle, C., Capacci-Daniel, C., Chopra, R., Hoffmaster, K., Jones, C.T., Kato, M., Lin, K., Ma, S., Pan, G., Shu, L., Wang, J., Whiteman, L., Xu, M., Zheng, R., Fu, J.

(2014) Bioorg Med Chem Lett 24: 3979-3985

  • DOI: https://doi.org/10.1016/j.bmcl.2014.06.031
  • Primary Citation of Related Structures:  
    4TLR, 4TN2

  • PubMed Abstract: 

    • Herein we report the successful incorporation of a lactam as an amide replacement in the design of hepatitis C virus NS5B Site II thiophene carboxylic acid inhibitors. Optimizing potency in a replicon assay and minimizing potential risk for CYP3A4 induction led to the discovery of inhibitor 22a ...

    Herein we report the successful incorporation of a lactam as an amide replacement in the design of hepatitis C virus NS5B Site II thiophene carboxylic acid inhibitors. Optimizing potency in a replicon assay and minimizing potential risk for CYP3A4 induction led to the discovery of inhibitor 22a. This lead compound has a favorable pharmacokinetic profile in rats and dogs.

    Organizational Affiliation: 

    Global Discovery Chemistry, Novartis Institutes for BioMedical Research, 250 Massachusetts Avenue, Cambridge, MA 02139, United States. Electronic address: jiping.fu@novartis.com.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
NS5b578Hepatitis C virus (isolate 1)Mutation(s): 0 
EC: 2.7.7.48
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
33H
Query on 33H
Download Ideal Coordinates CCD File 
B [auth A]3-{(2R,5R)-5-cyclohexyl-2-[(2R)-2-hydroxypropyl]-3-oxomorpholin-4-yl}-5-(3,3-dimethylbut-1-yn-1-yl)thiophene-2-carboxylic acid
C24 H33 N O5 S
HBHITDKHOXLFLK-UIAACRFSSA-N		 Ligand Interaction
79Z
Query on 79Z
Download Ideal Coordinates CCD File 
C [auth A]5-cyclopropyl-2-(4-fluorophenyl)-6-[(2-hydroxyethyl)(methylsulfonyl)amino]-N-methyl-1-benzofuran-3-carboxamide
C22 H23 F N2 O5 S
WTDWVLJJJOTABN-UHFFFAOYSA-N		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
33H Binding MOAD:  4TLR IC50: 3 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.86 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.166 
  • R-Value Observed: 0.168 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 59.41α = 90
b = 68.06β = 90
c = 143.72γ = 90
Software Package:
Software NamePurpose
BUSTER-TNTrefinement
BUSTERrefinement
PDB_EXTRACTdata extraction
XSCALEdata scaling
Aimlessdata scaling

Structure Validation

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Ligand Structure Quality Assessment 


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Entry History 

Deposition Data

  • Released Date: 2014-12-10 
    • Deposition Author(s): Chopra, R.

Revision History  (Full details and data files)

  • Version 1.0: 2014-12-10
    Type: Initial release
  • Version 1.1: 2015-02-04
    Changes: Derived calculations
  • Version 1.2: 2017-11-22
    Changes: Database references, Derived calculations, Refinement description, Source and taxonomy, Structure summary
  • Version 1.3: 2019-07-17
    Changes: Data collection, Refinement description