2F7E

PKA complexed with (S)-2-(1H-Indol-3-yl)-1-(5-isoquinolin-6-yl-pyridin-3-yloxymethyl-etylamine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.323 
  • R-Value Work: 0.283 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Synthesis and structure-activity relationship of 3,4'-bispyridinylethylenes: discovery of a potent 3-isoquinolinylpyridine inhibitor of protein kinase B (PKB/Akt) for the treatment of cancer.

Li, Q.Woods, K.W.Thomas, S.Zhu, G.D.Packard, G.Fisher, J.Li, T.Gong, J.Dinges, J.Song, X.Abrams, J.Luo, Y.Johnson, E.F.Shi, Y.Liu, X.Klinghofer, V.Des Jong, R.Oltersdorf, T.Stoll, V.S.Jakob, C.G.Rosenberg, S.H.Giranda, V.L.

(2006) Bioorg Med Chem Lett 16: 2000-2007

  • DOI: 10.1016/j.bmcl.2005.12.065
  • Primary Citation of Related Structures:  
    2F7E, 2F7Z

  • PubMed Abstract: 
  • Structure-based design and synthesis of the 3,4'-bispyridinylethylene series led to the discovery of 3-isoquinolinylpyridine 13a as a potent PKB/Akt inhibitor with an IC(50) of 1.3nM against Akt1. Compound 13a shows excellent selectivity against distinct families of kinases such as tyrosine kinases and CAMK, and displays poor to marginal selectivity against closely related kinases in the AGC and CMGC families ...

    Structure-based design and synthesis of the 3,4'-bispyridinylethylene series led to the discovery of 3-isoquinolinylpyridine 13a as a potent PKB/Akt inhibitor with an IC(50) of 1.3nM against Akt1. Compound 13a shows excellent selectivity against distinct families of kinases such as tyrosine kinases and CAMK, and displays poor to marginal selectivity against closely related kinases in the AGC and CMGC families. Moreover, 13a demonstrates potent cellular activity comparable to staurosporine, with IC(50) values of 0.42 and 0.59microM against MiaPaCa-2 and the Akt1 overexpressing FL5.12-Akt1, respectively. Inhibition of phosphorylation of the Akt downstream target GSK3 was also observed in FL5.12-Akt1 cells with an EC(50) of 1.5microM. The X-ray structures of 12 and 13a in complex with PKA in the ATP-binding site were determined.


    Organizational Affiliation

    Cancer Research, GPRD, Abbott Laboratories, Abbott Park, IL 60064-6101, USA. qun.li@abbott.com



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
cAMP-dependent protein kinase, alpha-catalytic subunitA [auth E]351Bos taurusMutation(s): 0 
Gene Names: PRKACA
EC: 2.7.1.37 (PDB Primary Data), 2.7.11.11 (UniProt)
UniProt
Find proteins for P00517 (Bos taurus)
Explore P00517 
Go to UniProtKB:  P00517
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00517
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
PKI inhibitory peptideB [auth I]20N/AMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P61925 (Homo sapiens)
Explore P61925 
Go to UniProtKB:  P61925
PHAROS:  P61925
GTEx:  ENSG00000171033 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP61925
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2EA
Query on 2EA

Download Ideal Coordinates CCD File 
C [auth E](1S)-2-(1H-INDOL-3-YL)-1-{[(5-ISOQUINOLIN-6-YLPYRIDIN-3-YL)OXY]METHYL}ETHYLAMINE
C25 H22 N4 O
BUCZDJYEOAQTHL-KEKNWZKVSA-N
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
2EA Binding MOAD:  2F7E IC50: 1.3 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.323 
  • R-Value Work: 0.283 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.812α = 90
b = 75.016β = 90
c = 80.028γ = 90
Software Package:
Software NamePurpose
CNXrefinement
HKL-2000data reduction
SCALEPACKdata scaling
CNXphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

  • Deposited Date: 2005-11-30 
  • Released Date: 2006-06-27 
  • Deposition Author(s): Stoll, V.S.

Revision History  (Full details and data files)

  • Version 1.0: 2006-06-27
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance