4KD1

CDK2 in complex with Dinaciclib


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Cyclin-dependent kinase inhibitor dinaciclib interacts with the acetyl-lysine recognition site of bromodomains.

Martin, M.P.Olesen, S.H.Georg, G.I.Schonbrunn, E.

(2013) Acs Chem.Biol. 8: 2360-2365

  • DOI: 10.1021/cb4003283
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Bromodomain-containing proteins are considered atypical kinases, but their potential to interact with kinase inhibitors is unknown. Dinaciclib is a potent inhibitor of cyclin-dependent kinases (CDKs), which recently advanced to Phase III clinical tri ...

    Bromodomain-containing proteins are considered atypical kinases, but their potential to interact with kinase inhibitors is unknown. Dinaciclib is a potent inhibitor of cyclin-dependent kinases (CDKs), which recently advanced to Phase III clinical trials for the treatment of leukemia. We determined the crystal structure of dinaciclib in complex with CDK2 at 1.7 Å resolution, revealing an elaborate network of binding interactions in the ATP site, which explains the extraordinary potency and selectivity of this inhibitor. Remarkably, dinaciclib also interacted with the acetyl-lysine recognition site of the bromodomain testis-specific protein BRDT, a member of the BET family of bromodomains. The binding mode of dinaciclib to BRDT at 2.0 Å resolution suggests that general kinase inhibitors ("hinge binders") possess a previously unrecognized potential to act as protein-protein inhibitors of bromodomains. The findings may provide a new structural framework for the design of next-generation bromodomain inhibitors using the vast chemical space of kinase inhibitors.


    Organizational Affiliation

    Drug Discovery Department, H. Lee Moffitt Cancer Center and Research Institute , 12902 Magnolia Drive, Tampa, Florida 33612, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cyclin-dependent kinase 2
A
298Homo 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
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO

Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
1QK
Query on 1QK

Download SDF File 
Download CCD File 
A
3-[({3-ethyl-5-[(2S)-2-(2-hydroxyethyl)piperidin-1-yl]pyrazolo[1,5-a]pyrimidin-7-yl}amino)methyl]-1-hydroxypyridinium
DINACICLIB
C21 H29 N6 O2
WBUFFOKXERTKGU-SFHVURJKSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.193 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 53.690α = 90.00
b = 71.890β = 90.00
c = 72.400γ = 90.00
Software Package:
Software NamePurpose
XDSdata scaling
XSCALEdata scaling
XDSdata reduction
PHENIXrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-09-18
    Type: Initial release
  • Version 1.1: 2013-12-25
    Type: Database references