Rational engineering of allosteric protein switches by in silico prediction of domain insertion sites
Domain insertion engineering is a powerful approach to juxtapose otherwise separate biological functions, resulting in proteins with new-to-nature activities. A prominent example are switchable protein variants, created by receptor domain insertion into effector proteins. Identifying suitable, allos...
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| Hauptverfasser: | , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
4 August 2025
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| In: |
Nature methods
Year: 2025, Jahrgang: 22, Heft: 8, Pages: 1698-1706 |
| ISSN: | 1548-7105 |
| DOI: | 10.1038/s41592-025-02741-z |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1038/s41592-025-02741-z Verlag, kostenfrei, Volltext: https://www.nature.com/articles/s41592-025-02741-z 
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| Verfasserangaben: | Benedict Wolf, Pegi Shehu, Luca Brenker, Anna-Lisa von Bachmann, Ann-Sophie Kroell, Nicholas Southern, Stefan Holderbach, Joshua Eigenmann, Sabine Aschenbrenner, Jan Mathony, and Dominik Niopek |
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| 245 | 1 | 0 | |a Rational engineering of allosteric protein switches by in silico prediction of domain insertion sites |c Benedict Wolf, Pegi Shehu, Luca Brenker, Anna-Lisa von Bachmann, Ann-Sophie Kroell, Nicholas Southern, Stefan Holderbach, Joshua Eigenmann, Sabine Aschenbrenner, Jan Mathony, and Dominik Niopek |
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| 520 | |a Domain insertion engineering is a powerful approach to juxtapose otherwise separate biological functions, resulting in proteins with new-to-nature activities. A prominent example are switchable protein variants, created by receptor domain insertion into effector proteins. Identifying suitable, allosteric sites for domain insertion, however, typically requires extensive screening and optimization. We present ProDomino, a machine learning pipeline to rationalize domain recombination, trained on a semisynthetic protein sequence dataset derived from naturally occurring intradomain insertion events. ProDomino robustly identifies domain insertion sites in proteins of biotechnological relevance, which we experimentally validated in Escherichia coli and human cells. Finally, we used light- and chemically regulated receptor domains as inserts and demonstrate the rapid, model-guided creation of potent, single-component opto- and chemogenetic protein switches. These include novel CRISPR-Cas9 and -Cas12a variants for inducible genome engineering in human cells. Our work enables one-shot domain insertion engineering and substantially accelerates the design of customized allosteric proteins. | ||
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