1OIQ

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.31 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.229 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.4 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: https://doi.org/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.


  • Organizational Affiliation

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


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
CELL DIVISION PROTEIN KINASE 2299Homo sapiensMutation(s): 0 
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
GTEx:  ENSG00000123374 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP24941
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
HDU
Query on HDU

Download Ideal Coordinates CCD File 
B [auth A]N-[4-(2-METHYLIMIDAZO[1,2-A]PYRIDIN-3-YL)-2-PYRIMIDINYL]ACETAMIDE
C14 H13 N5 O
ZCRPPLDDHBLUES-UHFFFAOYSA-N
Binding Affinity Annotations 
IDSourceBinding Affinity
HDU PDBBind:  1OIQ IC50: 2900 (nM) from 1 assay(s)
BindingDB:  1OIQ IC50: min: 2884, max: 2900 (nM) from 2 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.31 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.229 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.625α = 90
b = 72.715β = 90
c = 72.886γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
AMoREphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

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
  • Version 1.3: 2024-05-08
    Changes: Data collection, Database references, Other
  • Version 1.4: 2024-11-13
    Changes: Structure summary