1OIR

Imidazopyridines: a potent and selective class of Cyclin-dependent Kinase inhibitors identified through Structure-based hybridisation

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.91 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.205 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Imidazo[1,2-A]Pyridines: A Potent and Selective Class of Cyclin-Dependent Kinase Inhibitors Identified Through Structure-Based Hybridisation

Anderson, M., Beattie, J.F., Breault, G.A., Breed, J., Byth, K.F., Culshaw, J.D., Ellston, R.P.A., Green, S., Minshull, C.A., Norman, R.A., Pauptit, R.A., Stanway, J., Thomas, A.P., Jewsbury, P.J.

(2003) Bioorg Med Chem Lett 13: 3021

  • DOI: 10.1016/s0960-894x(03)00638-3
  • Primary Citation of Related Structures:  
    1OIQ, 1OIR, 1OIT

  • PubMed Abstract: 

    • High-throughput screening identified the imidazo[1,2-a]pyridine and bisanilinopyrimidine series as inhibitors of the cyclin-dependent kinase CDK4. Comparison of their experimentally-determined binding modes and emerging structure-activity trends led to the development of potent and selective imidazo[1,2-a]pyridine inhibitors for CDK4 and in particular CDK2 ...

    High-throughput screening identified the imidazo[1,2-a]pyridine and bisanilinopyrimidine series as inhibitors of the cyclin-dependent kinase CDK4. Comparison of their experimentally-determined binding modes and emerging structure-activity trends led to the development of potent and selective imidazo[1,2-a]pyridine inhibitors for CDK4 and in particular CDK2.

    Related Citations: 
    • High-Resolution Crystal Structures of Human Cyclin-Dependent Kinase 2 with and without ATP: Bound Waters and Natural Ligand as a Guide for Inhibitor Design
      Schulze-Gahmen, U., De Bondt, H., Kim, S.-H.
      (1996) J Med Chem 39: 4540
    Organizational Affiliation: 

    AstraZeneca, Alderley Park, Macclesfield, Cheshire SK10 4TG, UK.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CELL DIVISION PROTEIN KINASE 2A299Homo sapiensMutation(s): 0 
Gene Names: CDK2, CDKN2
EC: 2.7.1.37 (PDB Primary Data), 2.7.11.22 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P24941 (Homo sapiens)
Explore P24941 
Go to UniProtKB:  P24941
PHAROS:  P24941
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP24941
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HDY
Query on HDY
Download Ideal Coordinates CCD File 
B [auth A]1-(DIMETHYLAMINO)-3-(4-{{4-(2-METHYLIMIDAZO[1,2-A]PYRIDIN-3-YL)PYRIMIDIN-2-YL]AMINO}PHENOXY)PROPAN-2-OL
C23 H26 N6 O2
VCPXSBULBDYRLT-SFHVURJKSA-N		 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
KCX
Query on KCX		A L-PEPTIDE LINKINGC7 H14 N2 O4LYS
Binding Affinity Annotations 
IDSourceBinding Affinity
HDY PDBBind:  1OIR IC50: 32 (nM) from 1 assay(s)
BindingDB:  1OIR IC50: min: 1, max: 32 (nM) from 3 assay(s)
Binding MOAD:  1OIR IC50: 32 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.91 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.205 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 53.529α = 90
b = 72.239β = 90
c = 72.137γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
AMoREphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-09-04
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance