8QLT

Human MST3 (STK24) kinase in complex with inhibitor MR30


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.47 Å
  • R-Value Free: 0.176 
  • R-Value Work: 0.151 
  • R-Value Observed: 0.153 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Development of Selective Pyrido[2,3- d ]pyrimidin-7(8 H )-one-Based Mammalian STE20-Like (MST3/4) Kinase Inhibitors.

Rak, M.Menge, A.Tesch, R.Berger, L.M.Balourdas, D.I.Shevchenko, E.Kramer, A.Elson, L.Berger, B.T.Abdi, I.Wahl, L.M.Poso, A.Kaiser, A.Hanke, T.Kronenberger, T.Joerger, A.C.Muller, S.Knapp, S.

(2024) J Med Chem 67: 3813-3842

  • DOI: https://doi.org/10.1021/acs.jmedchem.3c02217
  • Primary Citation of Related Structures:  
    8BZJ, 8QLR, 8QLS, 8QLT

  • PubMed Abstract: 

    Mammalian STE20-like (MST) kinases 1-4 play key roles in regulating the Hippo and autophagy pathways, and their dysregulation has been implicated in cancer development. In contrast to the well-studied MST1/2, the roles of MST3/4 are less clear, in part due to the lack of potent and selective inhibitors. Here, we re-evaluated literature compounds, and used structure-guided design to optimize the p21-activated kinase (PAK) inhibitor G-5555 ( 8 ) to selectively target MST3/4. These efforts resulted in the development of MR24 ( 24 ) and MR30 ( 27 ) with good kinome-wide selectivity and high cellular potency. The distinct cellular functions of closely related MST kinases can now be elucidated with subfamily-selective chemical tool compounds using a combination of the MST1/2 inhibitor PF-06447475 ( 2 ) and the two MST3/4 inhibitors developed. We found that MST3/4-selective inhibition caused a cell-cycle arrest in the G1 phase, whereas MST1/2 inhibition resulted in accumulation of cells in the G2/M phase.


  • Organizational Affiliation

    Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt am Main, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Serine/threonine-protein kinase 24306Homo sapiensMutation(s): 0 
Gene Names: STK24MST3STK3
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y6E0 (Homo sapiens)
Explore Q9Y6E0 
Go to UniProtKB:  Q9Y6E0
PHAROS:  Q9Y6E0
GTEx:  ENSG00000102572 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9Y6E0
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.47 Å
  • R-Value Free: 0.176 
  • R-Value Work: 0.151 
  • R-Value Observed: 0.153 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 43.547α = 90
b = 58.56β = 107.27
c = 61.173γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research Foundation (DFG)GermanyJO 1473/1-3

Revision History  (Full details and data files)

  • Version 1.0: 2023-11-08
    Type: Initial release
  • Version 1.1: 2024-06-19
    Changes: Database references