2IW9

STRUCTURE OF HUMAN THR160-PHOSPHO CDK2-CYCLIN A COMPLEXED WITH A BISANILINOPYRIMIDINE INHIBITOR

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.212 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

Dissecting the Determinants of Cyclin-Dependent Kinase 2 and Cyclin-Dependent Kinase 4 Inhibitor Selectivity.

Pratt, D.J., Bentley, J., Jewsbury, P., Boyle, F.T., Endicott, J.A., Noble, M.E.M.

(2006) J Med Chem 49: 5470

  • DOI: 10.1021/jm060216x
  • Primary Citation of Related Structures:  
    2IW6, 2IW9, 2IW8

  • PubMed Abstract: 

    • Cyclin dependent kinases are a key family of kinases involved in cell cycle regulation and are an attractive target for cancer chemotherapy. The roles of four residues of the cyclin-dependent kinase active site in inhibitor selectivity were investigated ...

    Cyclin dependent kinases are a key family of kinases involved in cell cycle regulation and are an attractive target for cancer chemotherapy. The roles of four residues of the cyclin-dependent kinase active site in inhibitor selectivity were investigated by producing cyclin-dependent kinase 2 mutants bearing equivalent cyclin-dependent kinase 4 residues, namely F82H, L83V, H84D, and K89T. Assay of the mutants with a cyclin-dependent kinase 4-selective bisanilinopyrimidine shows that the K89T mutation is primarily responsible for the selectivity of this compound. Use of the cyclin-dependent kinase 2-selective 6-cyclohexylmethoxy-2-(4'-sulfamoylanilino)purine (NU6102) shows that K89T has no role in the selectivity, while the remaining three mutations have a cumulative influence. The results indicate that certain residues that are not frequently considered in structure-aided kinase inhibitor design have an important role to play.

    Organizational Affiliation: 

    Laboratory of Molecular Biophysics, Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CELL DIVISION PROTEIN KINASE 2 A, C302Homo sapiensMutation(s): 1 
Gene Names: CDK2, CDKN2
EC: 2.7.1.37 (PDB Primary Data), 2.7.11.22 (UniProt)
Find proteins for P24941 (Homo sapiens)
Explore P24941 
Go to UniProtKB:  P24941
NIH Common Fund Data Resources
PHAROS:  P24941
GTEx:  ENSG00000123374
Protein Feature View
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  • Reference Sequence
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(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
CYCLIN-A2 B, D260Homo sapiensMutation(s): 0 
Gene Names: CCNA2, CCN1, CCNA
Find proteins for P20248 (Homo sapiens)
Explore P20248 
Go to UniProtKB:  P20248
NIH Common Fund Data Resources
PHAROS:  P20248
GTEx:  ENSG00000145386
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
4SP
Query on 4SP
Download Ideal Coordinates CCD File 
A, C
O6-CYCLOHEXYLMETHOXY-2-(4'-SULPHAMOYLANILINO) PURINE
C18 H22 N6 O3 S
OWXORKPNCHJYOF-UHFFFAOYSA-N		 Ligand Interaction
SGM
Query on SGM
Download Ideal Coordinates CCD File 
B, D
MONOTHIOGLYCEROL
C3 H8 O2 S
PJUIMOJAAPLTRJ-GSVOUGTGSA-N		 Ligand Interaction
MG
Query on MG
Download Ideal Coordinates CCD File 
B, D
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N		 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
TPO
Query on TPO		A,CL-PEPTIDE LINKINGC4 H10 N O6 PTHR
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
4SPIC50:  5   nM  BindingDB
4SPIC50:  8.899999618530273   nM  Binding MOAD
4SPIC50:  6   nM  BindingDB
4SPIC50 :  8.899999618530273   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.212 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.758α = 90
b = 134.1β = 90
c = 148.12γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-09-06
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance