Discovery and optimization of the next generation of cell active Protein Kinase Novel 3 (PKN3) inhibitors

Authors

Georgiou, E., Laitinen, T., Poso, A., Heino, R., Asquith, C. R. M.

Abstract

Protein Kinase Novel 3 (PKN3) understudied kinase with a diverse array of biological functions that are yet to be fully defined. Here, we report the design and development of a novel advanced functional chemical tool inhibitor for PKN3. A pyridyl imidazole series has been synthesized and evaluated against PKN3 in vitro and in cells. These efforts led to the discovery of 6e (URS03-06), a submicromolar cell active functional inhibitor with a narrow kinome spectrum, to enable the elucidation and interrogation of PKN3 cellular biology.

Preprint server: bioRxiv
The authors list and abstract were imported from bioRxiv on 21 Aug 2026.

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