ArticleActa crystallographica. Section D, Structural biology2025
Polo-like kinase 1-inhibitor co-complex structures via the surface-entropy reduction approach and a DARPin-assisted approach.
Article in Acta crystallographica. Section D, Structural biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Targeting WEE1 kinase: an integrated machine learning-cheminformatics framework for ultra-large-scale virtual screening and novel inhibitor discovery.Journal of computer-aided molecular design · 2026Article
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8 authors.
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Abstract
Polo-like kinase 1 (PLK1) is a major regulator of cell division and has been pursued as a drug target for cancer therapy for a long time. Crystallization of the kinase domain has proven to be exceptionally challenging. Previously, we published a crystallization approach using a PLK1-specific designed ankyrin-repeat protein (DARPin) as a crystallization facilitator. Here, we report an alternative route: crystallization was successful after the introduction of a double mutation which reduced surface entropy and enabled the formation of a new crystal contact. This new PLK1 crystallization system was used to determine the first co-complex crystal structure of the Bayer thiazolidinone lead series, as well as crystal structures with representatives of two competitor inhibitor series. The molecular binding modes of these three inhibitors are analysed and discussed, and the surface-entropy reduction approach is compared with the surface modifications employed by us and others to enable the crystallization of PLK1.
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