3CQU

Crystal Structure of Akt-1 complexed with substrate peptide and inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.283 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.207 

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Ligand Structure Quality Assessment 


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Literature

Synthesis and structure based optimization of novel Akt inhibitors

Lippa, B.Pan, G.Corbett, M.Li, C.Kauffman, G.S.Pandit, J.Robinson, S.Wei, L.Kozina, E.Marr, E.S.Borzillo, G.Knauth, E.Barbacci-Tobin, E.G.Vincent, P.Troutman, M.Baker, D.Rajamohan, F.Kakar, S.Clark, T.Morris, J.

(2008) Bioorg Med Chem Lett 18: 3359-3363

  • DOI: https://doi.org/10.1016/j.bmcl.2008.04.034
  • Primary Citation of Related Structures:  
    3CQU, 3CQW

  • PubMed Abstract: 

    Based on a high throughput screening hit, pyrrolopyrimidine inhibitors of the Akt kinase are explored. X-ray co-crystal structures of two lead series results in the understanding of key binding interactions, the design of new lead series, and enhanced potency. The syntheses of these series and their biological activities are described. Spiroindoline 13j is found to have an Akt1 kinase IC(50) of 2.4+/-0.6 nM, Akt cell potency of 50+/-19 nM, and provides 68% inhibition of tumor growth in a mouse xenograft model (50 mg/kg, qd, po).


  • Organizational Affiliation

    Pfizer, Inc., PGRD Groton, 558 Eastern Point Road, Groton, CT 06340, USA. blaise.lippa@cubist.com


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
RAC-alpha serine/threonine-protein kinase342Homo sapiensMutation(s): 2 
Gene Names: AKT1PKBRAC
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for P31749 (Homo sapiens)
Explore P31749 
Go to UniProtKB:  P31749
PHAROS:  P31749
GTEx:  ENSG00000142208 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP31749
Sequence Annotations
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Glycogen synthase kinase-3 betaB [auth C]10Homo sapiensMutation(s): 0 
EC: 2.7.11.26
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
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
CQU
Query on CQU

Download Ideal Coordinates CCD File 
C [auth A]N-[2-(5-methyl-4H-1,2,4-triazol-3-yl)phenyl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine
C15 H13 N7
OKGCSZUKOGMZAL-UHFFFAOYSA-N
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
TPO
Query on TPO
A
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Binding Affinity Annotations 
IDSourceBinding Affinity
CQU PDBBind:  3CQU IC50: 151 (nM) from 1 assay(s)
Binding MOAD:  3CQU IC50: 151 (nM) from 1 assay(s)
BindingDB:  3CQU IC50: 151 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.283 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.207 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.487α = 90
b = 55.507β = 105.24
c = 93.359γ = 90
Software Package:
Software NamePurpose
d*TREKdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

  • Released Date: 2008-05-27 
  • Deposition Author(s): Pandit, J.

Revision History  (Full details and data files)

  • Version 1.0: 2008-05-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2021-10-20
    Changes: Database references, Derived calculations, Source and taxonomy