Crystal Structure of (1R,4R)-4-{4-[7-amino-2-(1,2,3-benzothiadiazol-7-yl)-3-chlorofuro[2,3-c]pyridin-4-yl]-1H-pyrazol-1-yl}cyclohexan-1-ol bound to TAK1-TAB1

Experimental Data Snapshot

  • Resolution: 2.55 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.211 

wwPDB Validation   3D Report Full Report

This is version 1.4 of the entry. See complete history


Discovery of 7-aminofuro[2,3-c]pyridine inhibitors of TAK1: Optimization of kinase selectivity and pharmacokinetics.

Hornberger, K.R.Chen, X.Crew, A.P.Kleinberg, A.Ma, L.Mulvihill, M.J.Wang, J.Wilde, V.L.Albertella, M.Bittner, M.Cooke, A.Kadhim, S.Kahler, J.Maresca, P.May, E.Meyn, P.Romashko, D.Tokar, B.Turton, R.

(2013) Bioorg Med Chem Lett 23: 4511-4516

  • DOI: https://doi.org/10.1016/j.bmcl.2013.06.054
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The kinase selectivity and pharmacokinetic optimization of a series of 7-aminofuro[2,3-c]pyridine inhibitors of TAK1 is described. The intersection of insights from molecular modeling, computational prediction of metabolic sites, and in vitro metabolite identification studies resulted in a simple and unique solution to both of these problems. These efforts culminated in the discovery of compound 13a, a potent, relatively selective inhibitor of TAK1 with good pharmacokinetic properties in mice, which was active in an in vivo model of ovarian cancer.

  • Organizational Affiliation

    OSI Pharmaceuticals LLC, 1 Bioscience Park Drive, Farmingdale, NY 11735, USA. keith.hornberger@boehringer-ingelheim.com

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Mitogen-activated protein kinase kinase kinase 7, TGF-beta-activated kinase 1 and MAP3K7-binding protein 1 chimera307Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q15750 (Homo sapiens)
Explore Q15750 
Go to UniProtKB:  Q15750
PHAROS:  Q15750
Find proteins for O43318 (Homo sapiens)
Explore O43318 
Go to UniProtKB:  O43318
PHAROS:  O43318
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsO43318Q15750
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on 1UO

Download Ideal Coordinates CCD File 
B [auth A]trans-4-{4-[7-amino-2-(1,2,3-benzothiadiazol-7-yl)-3-chlorofuro[2,3-c]pyridin-4-yl]-1H-pyrazol-1-yl}cyclohexanol
C22 H19 Cl N6 O2 S
Query on EDO

Download Ideal Coordinates CCD File 
C [auth A],
D [auth A]
C2 H6 O2
Binding Affinity Annotations 
IDSourceBinding Affinity
1UO BindingDB:  4L53 IC50: min: 10, max: 28 (nM) from 3 assay(s)
PDBBind:  4L53 IC50: 28 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.55 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.209 
  • R-Value Observed: 0.211 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 58.568α = 90
b = 134.53β = 90
c = 143.689γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-07-03
    Type: Initial release
  • Version 1.1: 2013-07-31
    Changes: Database references
  • Version 1.2: 2013-08-14
    Changes: Database references
  • Version 1.3: 2017-07-26
    Changes: Advisory, Refinement description, Source and taxonomy
  • Version 1.4: 2017-11-15
    Changes: Refinement description