Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 94749.50 
• Atom Count: 5482 
• Residue Count: 848 
• Unique protein chains: 1

1Q3W

GSK-3 Beta complexed with Alsterpaullone

• DOI: 10.2210/pdb1Q3W/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda


• Deposited: 2003-08-01 Released: 2003-10-21 
• Deposition Author(s): Bertrand, J.A., Thieffine, S., Vulpetti, A., Cristiani, C., Valsasina, B., Knapp, S., Kalisz, H.M., Flocco, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.248 
• R-Value Work: 0.225 

Literature

Structural Characterization of the Gsk-3Beta Active Site Using Selective and Non-selective ATP-Mimetic Inhibitors

Bertrand, J.A., Thieffine, S., Vulpetti, A., Cristiani, C., Valsasina, B., Knapp, S., Kalisz, H.M., Flocco, M.

(2003) J.Mol.Biol. 333: 393-407

• PubMed: 14529625 
• Primary Citation of Related Structures:  
  1Q4L, 1Q41, 1Q3D, 1PYX


• PubMed Abstract: 
  

GSK-3beta is a regulatory serine/threonine kinase with a plethora of cellular targets. Consequently, selective small molecule inhibitors of GSK-3beta may have a variety of therapeutic uses including the treatment of neurodegenerative diseases, type II diabetes and cancer. In order to characterize the active site of GSK-3beta, we determined crystal structures of unphosphorylated GSK-3beta in complex with selective and non-selective ATP-mimetic inhibitors. Analysis of the inhibitors' interactions with GSK-3beta in the structures reveals how the enzyme can accommodate a number of diverse molecular scaffolds. In addition, a conserved water molecule near Thr138 is identified that can serve a functional role in inhibitor binding. Finally, a comparison of the interactions made by selective and non-selective inhibitors highlights residues on the edge of the ATP binding-site that can be used to obtain inhibitor selectivity. Information gained from these structures provides a promising route for the design of second-generation GSK-3beta inhibitors.

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Organizational Affiliation: 

Department of Chemistry, Pharmacia Italia SpA, Discovery Research Oncology, Viale Pasteur, 10, 20014 Nerviano, Italy. [e-mail]

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
GLYCOGEN SYNTHASE KINASE-3 BETA	A, B	424	Homo sapiens	Mutation(s): 0  Gene Names: GSK3B EC: 2.7.11.26
Find proteins for P49841 (Homo sapiens) Go to Gene View: GSK3B Go to UniProtKB:  P49841

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
ATU	A, B	9-NITRO-5,12-DIHYDRO-7H-BENZO[2,3]AZEPINO[4,5-B]INDOL-6-ONE ALSTERPAULLONE C16 H11 N3 O3 OLUKILHGKRVDCT-UHFFFAOYSA-N

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
ATU	IC50: 4 - 20 nM (98) BINDINGDB
ATU	IC50: 4 nM BINDINGMOAD
ATU	IC50: 4 nM PDBBIND

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.248 
• R-Value Work: 0.225 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 82.673	α = 90.00
b = 85.991	β = 90.00
c = 178.192	γ = 90.00

Software Package:

Software Name	Purpose
CNX	refinement
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2003-08-01 
• Released Date: 2003-10-21 
• Deposition Author(s): Bertrand, J.A., Thieffine, S., Vulpetti, A., Cristiani, C., Valsasina, B., Knapp, S., Kalisz, H.M., Flocco, M.

Revision History 

• Version 1.0: 2003-10-21
  Type: Initial release
• Version 1.1: 2008-04-29
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance