9GLA | pdb_00009gla

Crystal structure of a CDK2-based CDK7 mimic with inhibitor SY5609


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.18 Å
  • R-Value Free: 
    0.249 (Depositor), 0.254 (DCC) 
  • R-Value Work: 
    0.201 (Depositor), 0.210 (DCC) 
  • R-Value Observed: 
    0.203 (Depositor) 

Starting Model: experimental
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Literature

CDK2-based CDK7 mimic as a tool for structural analysis: Biochemical validation and crystal structure with SY5609.

Skerlova, J.Krejcirikova, V.Perina, M.Vojackova, V.Fabry, M.Krystof, V.Jorda, R.Rezacova, P.

(2025) Int J Biol Macromol 294: 139117-139117

  • DOI: https://doi.org/10.1016/j.ijbiomac.2024.139117
  • Primary Citation of Related Structures:  
    9GLA

  • PubMed Abstract: 

    Cyclin-dependent kinases (CDKs) regulate cell cycle progression and transcription. CDK7 plays a pivotal role in cell division and proliferation, and the CDK7 gene often exhibits mutations or copy number loss in cancer. Pharmacological targeting of CDK7 has been proposed as a cancer treatment strategy and several inhibitors are currently in clinical trials. As opposed to CDK2, the use of structure-assisted drug design for CDK7 has been limited. We present here CDK2m7, a CDK2-based CDK7 mimic created by mutagenesis of the CDK2 active site pocket. CDK2m7 can be produced in E. coli in a fully active complex with cyclin A2 in high yield and purity. CDK2m7 exhibits a shift in inhibitor selectivity from CDK2 to CDK7 and readily crystallizes. Therefore, it can be used in structure-assisted design of CDK7 inhibitors, as demonstrated by the crystal structure of the complex with inhibitor SY5609. CDK2m7 thus represents a simple and affordable platform for CDK7 rational drug development.


  • Organizational Affiliation
    • Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic. Electronic address: jana.skerlova@uochb.cas.cz.

Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Cyclin-dependent kinase 2298Homo sapiensMutation(s): 12 
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
Cyclin-A2258Homo sapiensMutation(s): 0 
Gene Names: CCNA2CCN1CCNA
UniProt & NIH Common Fund Data Resources
Find proteins for P20248 (Homo sapiens)
Explore P20248 
Go to UniProtKB:  P20248
PHAROS:  P20248
GTEx:  ENSG00000145386 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP20248
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
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: 2.18 Å
  • R-Value Free:  0.249 (Depositor), 0.254 (DCC) 
  • R-Value Work:  0.201 (Depositor), 0.210 (DCC) 
  • R-Value Observed: 0.203 (Depositor) 
Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 71.937α = 90
b = 109.786β = 90
c = 163.554γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata scaling
MOLREPphasing
XDSdata reduction

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
European Union (EU)European UnionProgramme EXCELES, ID Project No. LX22NPO5102

Revision History  (Full details and data files)

  • Version 1.0: 2025-04-02
    Type: Initial release