Rational strain design with minimal phenotype perturbation.

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Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_1CF77E010AAE
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Rational strain design with minimal phenotype perturbation.
Journal
Nature communications
Author(s)
Narayanan B., Weilandt D., Masid M., Miskovic L., Hatzimanikatis V.
ISSN
2041-1723 (Electronic)
ISSN-L
2041-1723
Publication state
Published
Issued date
24/01/2024
Peer-reviewed
Oui
Volume
15
Number
1
Pages
723
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
Devising genetic interventions for desired cellular phenotypes remains challenging regarding time and resources. Kinetic models can accelerate this task by simulating metabolic responses to genetic perturbations. However, exhaustive design evaluations with kinetic models are computationally impractical, especially when targeting multiple enzymes. Here, we introduce a framework for efficiently scouting the design space while respecting cellular physiological requirements. The framework employs mixed-integer linear programming and nonlinear simulations with large-scale nonlinear kinetic models to devise genetic interventions while accounting for the network effects of these perturbations. Importantly, it ensures the engineered strain's robustness by maintaining its phenotype close to that of the reference strain. The framework, applied to improve the anthranilate production in E. coli, devises designs for experimental implementation, including eight previously experimentally validated targets. We expect this framework to play a crucial role in future design-build-test-learn cycles, significantly expediting the strain design compared to exhaustive design enumeration.
Keywords
Escherichia coli/genetics, Genetic Engineering, Kinetics, Learning, Phenotype
Pubmed
Web of science
Open Access
Yes
Create date
26/01/2024 11:07
Last modification date
02/03/2024 7:10
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