Human Jnk1alpha kinase with 4-phenyl-7-azaindole IKK2 inhibitor.

Experimental Data Snapshot

  • Resolution: 1.91 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.188 

wwPDB Validation   3D Report Full Report

Ligand Structure Quality Assessment 

This is version 1.2 of the entry. See complete history


4-Phenyl-7-Azaindoles as Potent, Selective and Bioavailable Ikk2 Inhibitors Demonstrating Good in Vivo Efficacy.

Liddle, J.Bamborough, P.Barker, M.D.Campos, S.Chung, C.Cousins, R.P.C.Faulder, P.Heathcote, M.L.Hobbs, H.Holmes, D.S.Ioannou, C.Ramirez-Molina, C.Morse, M.A.Osborn, R.Payne, J.J.Pritchard, J.M.Rumsey, W.L.Tape, D.T.Vicentini, G.Whitworth, C.Williamson, R.A.

(2012) Bioorg Med Chem Lett 22: 5222

  • DOI: https://doi.org/10.1016/j.bmcl.2012.06.065
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The lead optimization of a series of potent azaindole IKK2 inhibitors is described. Optimization of the human whole blood activity and selectivity over IKK1 in parallel led to the discovery of 16, a potent and selective IKK2 inhibitor showing good efficacy in a rat model of neutrophil activation.

  • Organizational Affiliation

    GlaxoSmithKline R&D, Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2NY, UK. john.2.liddle@gsk.com

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
MITOGEN-ACTIVATED PROTEIN KINASE 8369Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P45983 (Homo sapiens)
Explore P45983 
Go to UniProtKB:  P45983
PHAROS:  P45983
GTEx:  ENSG00000107643 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP45983
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on AQ2

Download Ideal Coordinates CCD File 
B [auth A]N-(1,1-dioxidotetrahydro-2H-thiopyran-4-yl)-4-[2-(1-methylethyl)-1H-pyrrolo[2,3-b]pyridin-4-yl]benzenesulfonamide
C21 H25 N3 O4 S2
Query on SO4

Download Ideal Coordinates CCD File 
C [auth A],
D [auth A]
O4 S
Binding Affinity Annotations 
IDSourceBinding Affinity
AQ2 Binding MOAD:  4AWI IC50: 1000 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 1.91 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.188 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.438α = 90
b = 72.747β = 90
c = 110.155γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report

Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-05-01
    Type: Initial release
  • Version 1.1: 2014-07-30
    Changes: Database references
  • Version 1.2: 2024-05-08
    Changes: Data collection, Database references, Derived calculations, Other