2C1B

Structure of cAMP-dependent protein kinase complexed with (4R,2S)-5'-(4-(4-Chlorobenzyloxy)pyrrolidin-2-ylmethanesulfonyl)isoquinoline


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.160 
  • R-Value Observed: 0.162 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure-based design of isoquinoline-5-sulfonamide inhibitors of protein kinase B.

Collins, I.Caldwell, J.Fonseca, T.Donald, A.Bavetsias, V.Hunter, L.J.Garrett, M.D.Rowlands, M.G.Aherne, G.W.Davies, T.G.Berdini, V.Woodhead, S.J.Davis, D.Seavers, L.C.Wyatt, P.G.Workman, P.McDonald, E.

(2006) Bioorg Med Chem 14: 1255-1273

  • DOI: 10.1016/j.bmc.2005.09.055
  • Primary Citation of Related Structures:  
    2C1B, 2C1A

  • PubMed Abstract: 
  • Structure-based drug design of novel isoquinoline-5-sulfonamide inhibitors of PKB as potential antitumour agents was investigated. Constrained pyrrolidine analogues that mimicked the bound conformation of linear prototypes were identified and investigated by co-crystal structure determinations with the related protein PKA ...

    Structure-based drug design of novel isoquinoline-5-sulfonamide inhibitors of PKB as potential antitumour agents was investigated. Constrained pyrrolidine analogues that mimicked the bound conformation of linear prototypes were identified and investigated by co-crystal structure determinations with the related protein PKA. Detailed variation in the binding modes between inhibitors with similar overall conformations was observed. Potent PKB inhibitors from this series inhibited GSK3beta phosphorylation in cellular assays, consistent with inhibition of PKB kinase activity in cells.


    Organizational Affiliation

    Cancer Research, UK Centre for Cancer Therapeutics, The Institute of Cancer Research, Sutton, Surrey. Ian.Collins@icr.ac.uk



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CAMP-DEPENDENT PROTEIN KINASEA351Bos taurusMutation(s): 0 
Gene Names: PRKACA
EC: 2.7.1.37 (PDB Primary Data), 2.7.11.11 (UniProt)
Find proteins for P00517 (Bos taurus)
Explore P00517 
Go to UniProtKB:  P00517
Protein Feature View
Expand
  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
CAMP-DEPENDENT PROTEIN KINASE INHIBITORI20Homo sapiensMutation(s): 0 
Gene Names: PKIAPRKACN1
Find proteins for P61925 (Homo sapiens)
Explore P61925 
Go to UniProtKB:  P61925
NIH Common Fund Data Resources
PHAROS  P61925
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CQP
Query on CQP

Download CCD File 
A
(4R,2S)-5'-(4-(4-CHLOROBENZYLOXY)PYRROLIDIN-2-YLMETHANESULFONYL)ISOQUINOLINE
C21 H22 Cl N3 O3 S
RLNNFNGBXLTQOB-RBUKOAKNSA-N
 Ligand Interaction
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
AL-PEPTIDE LINKINGC3 H8 N O6 PSER
TPO
Query on TPO
AL-PEPTIDE LINKINGC4 H10 N O6 PTHR
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
CQPIC50 :  400   nM  PDBBind
CQPIC50:  400   nM  BindingDB
CQPIC50:  400   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.160 
  • R-Value Observed: 0.162 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.31α = 90
b = 75.16β = 90
c = 80.052γ = 90
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report



Entry History 

Revision History 

  • Version 1.0: 2005-11-02
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-02-28
    Changes: Database references, Structure summary