1OGU

STRUCTURE OF HUMAN THR160-PHOSPHO CDK2/CYCLIN A COMPLEXED WITH A 2-ARYLAMINO-4-CYCLOHEXYLMETHYL-5-NITROSO-6-AMINOPYRIMIDINE INHIBITOR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.198 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure-Based Design of 2-Arylamino-4-Cyclohexyl Methyl-5-Nitroso-6-Aminopyrimidine Inhibitors of Cyclin-Dependent Kinases 1 and 2

Sayle, K.L.Bentley, J.Boyle, F.T.Calvert, A.H.Cheng, Y.Curtin, N.J.Endicott, J.A.Golding, B.T.Hardcastle, I.R.Jewsbury, P.Mesguiche, V.Newell, D.R.Noble, M.E.M.Parsons, R.J.Pratt, D.J.Wang, L.Z.Griffin, R.J.

(2003) Bioorg.Med.Chem.Lett. 13: 3079


  • PubMed Abstract: 
  • A series of O(4)-cyclohexylmethyl-5-nitroso-6-aminopyrimidines bearing 2-arylamino substituents was synthesised and evaluated for CDK1 and CDK2 inhibitory activity. Consistent with analogous studies with O(6)-cyclohexylmethylpurines, 2-arylaminopyrim ...

    A series of O(4)-cyclohexylmethyl-5-nitroso-6-aminopyrimidines bearing 2-arylamino substituents was synthesised and evaluated for CDK1 and CDK2 inhibitory activity. Consistent with analogous studies with O(6)-cyclohexylmethylpurines, 2-arylaminopyrimidines with a sulfonamide or carboxamide group at the 4'-position were potent inhibitors, with IC(50) values against CDK2 of 1.1+/-0.3 and 34+/-8 nM, respectively. The crystal structure of the 4'-carboxamide derivative, in complex with phospho-Thr160 CDK2/cyclin A, confirmed the expected binding mode of the inhibitor, and revealed an additional interaction between the carboxamide function and an aspartate residue.


    Organizational Affiliation

    Northern Institute for Cancer Research, School of Natural Sciences-Chemistry, Bedson Building, University of Newcastle, Newcastle Upon Tyne NE1 7RU, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CELL DIVISION PROTEIN KINASE 2
A, C
302Homo sapiensMutation(s): 0 
Gene Names: CDK2 (CDKN2)
EC: 2.7.11.22
Find proteins for P24941 (Homo sapiens)
Go to Gene View: CDK2
Go to UniProtKB:  P24941
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CYCLIN A2
B, D
260Homo sapiensMutation(s): 0 
Gene Names: CCNA2 (CCN1, CCNA)
Find proteins for P20248 (Homo sapiens)
Go to Gene View: CCNA2
Go to UniProtKB:  P20248
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ST8
Query on ST8

Download SDF File 
Download CCD File 
A, C
4-{[4-AMINO-6-(CYCLOHEXYLMETHOXY)-5-NITROSOPYRIMIDIN-2-YL]AMINO}BENZAMIDE
C18 H22 N6 O3
YBKLJTXDSBEVRV-UHFFFAOYSA-N
 Ligand Interaction
SGM
Query on SGM

Download SDF File 
Download CCD File 
B, D
MONOTHIOGLYCEROL
C3 H8 O2 S
PJUIMOJAAPLTRJ-GSVOUGTGSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
TPO
Query on TPO
A, C
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
ST8Ki: 2400 nM (100) BINDINGDB
ST8IC50: 34 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.198 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 73.836α = 90.00
b = 133.676β = 90.00
c = 148.335γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
REFMACrefinement
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-09-02
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance