Crystal structure of GSK-3beta complexed with PF-04802367, a highly selective brain-penetrant kinase inhibitor

Experimental Data Snapshot

  • Resolution: 2.20 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.205 

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Discovery of a Highly Selective Glycogen Synthase Kinase-3 Inhibitor (PF-04802367) That Modulates Tau Phosphorylation in the Brain: Translation for PET Neuroimaging.

Liang, S.H.Chen, J.M.Normandin, M.D.Chang, J.S.Chang, G.C.Taylor, C.K.Trapa, P.Plummer, M.S.Para, K.S.Conn, E.L.Lopresti-Morrow, L.Lanyon, L.F.Cook, J.M.Richter, K.E.Nolan, C.E.Schachter, J.B.Janat, F.Che, Y.Shanmugasundaram, V.Lefker, B.A.Enerson, B.E.Livni, E.Wang, L.Guehl, N.J.Patnaik, D.Wagner, F.F.Perlis, R.Holson, E.B.Haggarty, S.J.El Fakhri, G.Kurumbail, R.G.Vasdev, N.

(2016) Angew Chem Int Ed Engl 55: 9601-9605

  • DOI: https://doi.org/10.1002/anie.201603797
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Glycogen synthase kinase-3 (GSK-3) regulates multiple cellular processes in diabetes, oncology, and neurology. N-(3-(1H-1,2,4-triazol-1-yl)propyl)-5-(3-chloro-4-methoxyphenyl)oxazole-4-carboxamide (PF-04802367 or PF-367) has been identified as a highly potent inhibitor, which is among the most selective antagonists of GSK-3 to date. Its efficacy was demonstrated in modulation of tau phosphorylation in vitro and in vivo. Whereas the kinetics of PF-367 binding in brain tissues are too fast for an effective therapeutic agent, the pharmacokinetic profile of PF-367 is ideal for discovery of radiopharmaceuticals for GSK-3 in the central nervous system. A (11) C-isotopologue of PF-367 was synthesized and preliminary PET imaging studies in non-human primates confirmed that we have overcome the two major obstacles for imaging GSK-3, namely, reasonable brain permeability and displaceable binding.

  • Organizational Affiliation

    Gordon Center for Medical Imaging & Nuclear Medicine and Molecular Imaging, Massachusetts General Hospital & Department of Radiology, Harvard Medical School, Boston, MA, 02114, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Glycogen synthase kinase-3 beta
A, B
370Homo sapiensMutation(s): 1 
Gene Names: GSK3B
EC: (PDB Primary Data), (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for P49841 (Homo sapiens)
Explore P49841 
Go to UniProtKB:  P49841
PHAROS:  P49841
GTEx:  ENSG00000082701 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP49841
Sequence Annotations
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
Query on PTR
A, B
Binding Affinity Annotations 
IDSourceBinding Affinity
6QH Binding MOAD:  5K5N IC50: 9 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.20 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.205 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 66.293α = 90
b = 99.907β = 102.9
c = 66.91γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PDB_EXTRACTdata extraction

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-09-21
    Type: Initial release