2C1A

Structure of cAMP-dependent protein kinase complexed with Isoquinoline-5-sulfonic acid (2-(2-(4-chlorobenzyloxy)ethylamino) ethyl)amide

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.173 

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:  

  • 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 investi ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CAMP-DEPENDENT PROTEIN KINASE
A
351Bos taurusMutation(s): 0 
Gene Names: PRKACA
EC: 2.7.11.11
Find proteins for P00517 (Bos taurus)
Go to Gene View: PRKACA
Go to UniProtKB:  P00517
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CAMP-DEPENDENT PROTEIN KINASE INHIBITOR
I
20Homo sapiensMutation(s): 0 
Gene Names: PKIA (PRKACN1)
Find proteins for P61925 (Homo sapiens)
Go to Gene View: PKIA
Go to UniProtKB:  P61925
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
I5S
Query on I5S
Download SDF File 
Download CCD File 
A
ISOQUINOLINE-5-SULFONIC ACID (2-(2-(4-CHLOROBENZYLOXY)ETHYLAMINO)ETHYL)AMIDE
C20 H22 Cl N3 O3 S
AUHWQSZMVMMRLM-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
A
L-PEPTIDE LINKINGC3 H8 N O6 PSER
TPO
Query on TPO
A
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
I5SIC50: 170 nM (100) BINDINGDB
I5SIC50: 170 nM BINDINGMOAD
I5SIC50: 170 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.173 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 72.364α = 90.00
b = 75.097β = 90.00
c = 80.069γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots


View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

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