7KJS

Crystal structure of CDK2/cyclin E in complex with PF-06873600


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.19 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.231 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Discovery of PF-06873600, a CDK2/4/6 Inhibitor for the Treatment of Cancer.

Freeman-Cook, K.D.Hoffman, R.L.Behenna, D.C.Boras, B.Carelli, J.Diehl, W.Ferre, R.A.He, Y.A.Hui, A.Huang, B.Huser, N.Jones, R.Kephart, S.E.Lapek, J.McTigue, M.Miller, N.Murray, B.W.Nagata, A.Nguyen, L.Niessen, S.Ninkovic, S.O'Doherty, I.Ornelas, M.A.Solowiej, J.Sutton, S.C.Tran, K.Tseng, E.Visswanathan, R.Xu, M.Zehnder, L.Zhang, Q.Zhang, C.Dann, S.

(2021) J Med Chem 64: 9056-9077

  • DOI: https://doi.org/10.1021/acs.jmedchem.1c00159
  • Primary Citation of Related Structures:  
    7KJS

  • PubMed Abstract: 

    Control of the cell cycle through selective pharmacological inhibition of CDK4/6 has proven beneficial in the treatment of breast cancer. Extending this level of control to additional cell cycle CDK isoforms represents an opportunity to expand to additional tumor types and potentially provide benefits to patients that develop tumors resistant to selective CDK4/6 inhibitors. However, broad-spectrum CDK inhibitors have a long history of failure due to safety concerns. In this approach, we describe the use of structure-based drug design and Free-Wilson analysis to optimize a series of CDK2/4/6 inhibitors. Further, we detail the use of molecular dynamics simulations to provide insights into the basis for selectivity against CDK9. Based on overall potency, selectivity, and ADME profile, PF-06873600 ( 22 ) was identified as a candidate for the treatment of cancer and advanced to phase 1 clinical trials.


  • Organizational Affiliation

    Pfizer Global Research and Development La Jolla, 10770 Science Center Drive, San Diego, California 92121, United States.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Cyclin-dependent kinase 2298Homo sapiensMutation(s): 0 
Gene Names: CDK2CDKN2
EC: 2.7.11.22
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
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
G1/S-specific cyclin-E1291Homo sapiensMutation(s): 0 
Gene Names: CCNE1CCNE
UniProt & NIH Common Fund Data Resources
Find proteins for P24864 (Homo sapiens)
Explore P24864 
Go to UniProtKB:  P24864
PHAROS:  P24864
GTEx:  ENSG00000105173 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP24864
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
WG1 (Subject of Investigation/LOI)
Query on WG1

Download Ideal Coordinates CCD File 
C [auth A]6-(difluoromethyl)-8-[(1R,2R)-2-hydroxy-2-methylcyclopentyl]-2-{[1-(methylsulfonyl)piperidin-4-yl]amino}pyrido[2,3-d]pyrimidin-7(8H)-one
C20 H27 F2 N5 O4 S
QIEKHLDZKRQLLN-FOIQADDNSA-N
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
TPO
Query on TPO
A
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.19 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.231 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 100.304α = 90
b = 100.304β = 90
c = 149.982γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
Aimlessdata scaling
BUSTERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2021-06-23
    Type: Initial release
  • Version 1.1: 2021-07-28
    Changes: Database references
  • Version 1.2: 2023-10-18
    Changes: Data collection, Database references, Refinement description