System‐wide optimization of an orthogonal translation system with enhanced biological tolerance

Abstract Over the past two decades, synthetic biological systems have revolutionized the study of cellular physiology. The ability to site‐specifically incorporate biologically relevant non‐standard amino acids using orthogonal translation systems (OTSs) has proven particularly useful, providing unp...

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Main Authors: Kyle Mohler, Jack M Moen, Svetlana Rogulina, Jesse Rinehart
Format: Article
Language:English
Published: Springer Nature 2023-07-01
Series:Molecular Systems Biology
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Online Access:https://doi.org/10.15252/msb.202110591
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author Kyle Mohler
Jack M Moen
Svetlana Rogulina
Jesse Rinehart
author_facet Kyle Mohler
Jack M Moen
Svetlana Rogulina
Jesse Rinehart
author_sort Kyle Mohler
collection DOAJ
description Abstract Over the past two decades, synthetic biological systems have revolutionized the study of cellular physiology. The ability to site‐specifically incorporate biologically relevant non‐standard amino acids using orthogonal translation systems (OTSs) has proven particularly useful, providing unparalleled access to cellular mechanisms modulated by post‐translational modifications, such as protein phosphorylation. However, despite significant advances in OTS design and function, the systems‐level biology of OTS development and utilization remains underexplored. In this study, we employ a phosphoserine OTS (pSerOTS) as a model to systematically investigate global interactions between OTS components and the cellular environment, aiming to improve OTS performance. Based on this analysis, we design OTS variants to enhance orthogonality by minimizing host process interactions and reducing stress response activation. Our findings advance understanding of system‐wide OTS:host interactions, enabling informed design practices that circumvent deleterious interactions with host physiology while improving OTS performance and stability. Furthermore, our study emphasizes the importance of establishing a pipeline for systematically profiling OTS:host interactions to enhance orthogonality and mitigate mechanisms underlying OTS‐mediated host toxicity.
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spelling doaj-art-85d65118eae1479585f4602431d54ea42024-11-10T12:48:28ZengSpringer NatureMolecular Systems Biology1744-42922023-07-0119811810.15252/msb.202110591System‐wide optimization of an orthogonal translation system with enhanced biological toleranceKyle Mohler0Jack M Moen1Svetlana Rogulina2Jesse Rinehart3Department of Cellular & Molecular Physiology, Yale School of MedicineQuantitative Biosciences Institute (QBI), University of California, San FranciscoDepartment of Cellular & Molecular Physiology, Yale School of MedicineDepartment of Cellular & Molecular Physiology, Yale School of MedicineAbstract Over the past two decades, synthetic biological systems have revolutionized the study of cellular physiology. The ability to site‐specifically incorporate biologically relevant non‐standard amino acids using orthogonal translation systems (OTSs) has proven particularly useful, providing unparalleled access to cellular mechanisms modulated by post‐translational modifications, such as protein phosphorylation. However, despite significant advances in OTS design and function, the systems‐level biology of OTS development and utilization remains underexplored. In this study, we employ a phosphoserine OTS (pSerOTS) as a model to systematically investigate global interactions between OTS components and the cellular environment, aiming to improve OTS performance. Based on this analysis, we design OTS variants to enhance orthogonality by minimizing host process interactions and reducing stress response activation. Our findings advance understanding of system‐wide OTS:host interactions, enabling informed design practices that circumvent deleterious interactions with host physiology while improving OTS performance and stability. Furthermore, our study emphasizes the importance of establishing a pipeline for systematically profiling OTS:host interactions to enhance orthogonality and mitigate mechanisms underlying OTS‐mediated host toxicity.https://doi.org/10.15252/msb.202110591bacterial physiologyorthogonal translation systemphosphoserinestress tolerancesynthetic biology
spellingShingle Kyle Mohler
Jack M Moen
Svetlana Rogulina
Jesse Rinehart
System‐wide optimization of an orthogonal translation system with enhanced biological tolerance
Molecular Systems Biology
bacterial physiology
orthogonal translation system
phosphoserine
stress tolerance
synthetic biology
title System‐wide optimization of an orthogonal translation system with enhanced biological tolerance
title_full System‐wide optimization of an orthogonal translation system with enhanced biological tolerance
title_fullStr System‐wide optimization of an orthogonal translation system with enhanced biological tolerance
title_full_unstemmed System‐wide optimization of an orthogonal translation system with enhanced biological tolerance
title_short System‐wide optimization of an orthogonal translation system with enhanced biological tolerance
title_sort system wide optimization of an orthogonal translation system with enhanced biological tolerance
topic bacterial physiology
orthogonal translation system
phosphoserine
stress tolerance
synthetic biology
url https://doi.org/10.15252/msb.202110591
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AT svetlanarogulina systemwideoptimizationofanorthogonaltranslationsystemwithenhancedbiologicaltolerance
AT jesserinehart systemwideoptimizationofanorthogonaltranslationsystemwithenhancedbiologicaltolerance