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Engineering Strategies to Overcome the Stability–Function Trade-Off in Proteins

[Image: see text] In addition to its biological function, the stability of a protein is a major determinant for its applicability. Unfortunately, engineering proteins for improved functionality usually results in destabilization of the protein. This so-called stability–function trade-off can be expl...

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Autores principales: Teufl, Magdalena, Zajc, Charlotte U., Traxlmayr, Michael W.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8938945/
https://www.ncbi.nlm.nih.gov/pubmed/35258287
http://dx.doi.org/10.1021/acssynbio.1c00512
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author Teufl, Magdalena
Zajc, Charlotte U.
Traxlmayr, Michael W.
author_facet Teufl, Magdalena
Zajc, Charlotte U.
Traxlmayr, Michael W.
author_sort Teufl, Magdalena
collection PubMed
description [Image: see text] In addition to its biological function, the stability of a protein is a major determinant for its applicability. Unfortunately, engineering proteins for improved functionality usually results in destabilization of the protein. This so-called stability–function trade-off can be explained by the simple fact that the generation of a novel protein function—or the improvement of an existing one—necessitates the insertion of mutations, i.e., deviations from the evolutionarily optimized wild-type sequence. In fact, it was demonstrated that gain-of-function mutations are not more destabilizing than other random mutations. The stability–function trade-off is a universal phenomenon during protein evolution that has been observed with completely different types of proteins, including enzymes, antibodies, and engineered binding scaffolds. In this review, we discuss three types of strategies that have been successfully deployed to overcome this omnipresent obstacle in protein engineering approaches: (i) using highly stable parental proteins, (ii) minimizing the extent of destabilization during functional engineering (by library optimization and/or coselection for stability and function), and (iii) repairing damaged mutants through stability engineering. The implementation of these strategies in protein engineering campaigns will facilitate the efficient generation of protein variants that are not only functional but also stable and therefore better-suited for subsequent applications.
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spelling pubmed-89389452022-03-29 Engineering Strategies to Overcome the Stability–Function Trade-Off in Proteins Teufl, Magdalena Zajc, Charlotte U. Traxlmayr, Michael W. ACS Synth Biol [Image: see text] In addition to its biological function, the stability of a protein is a major determinant for its applicability. Unfortunately, engineering proteins for improved functionality usually results in destabilization of the protein. This so-called stability–function trade-off can be explained by the simple fact that the generation of a novel protein function—or the improvement of an existing one—necessitates the insertion of mutations, i.e., deviations from the evolutionarily optimized wild-type sequence. In fact, it was demonstrated that gain-of-function mutations are not more destabilizing than other random mutations. The stability–function trade-off is a universal phenomenon during protein evolution that has been observed with completely different types of proteins, including enzymes, antibodies, and engineered binding scaffolds. In this review, we discuss three types of strategies that have been successfully deployed to overcome this omnipresent obstacle in protein engineering approaches: (i) using highly stable parental proteins, (ii) minimizing the extent of destabilization during functional engineering (by library optimization and/or coselection for stability and function), and (iii) repairing damaged mutants through stability engineering. The implementation of these strategies in protein engineering campaigns will facilitate the efficient generation of protein variants that are not only functional but also stable and therefore better-suited for subsequent applications. American Chemical Society 2022-03-08 2022-03-18 /pmc/articles/PMC8938945/ /pubmed/35258287 http://dx.doi.org/10.1021/acssynbio.1c00512 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Teufl, Magdalena
Zajc, Charlotte U.
Traxlmayr, Michael W.
Engineering Strategies to Overcome the Stability–Function Trade-Off in Proteins
title Engineering Strategies to Overcome the Stability–Function Trade-Off in Proteins
title_full Engineering Strategies to Overcome the Stability–Function Trade-Off in Proteins
title_fullStr Engineering Strategies to Overcome the Stability–Function Trade-Off in Proteins
title_full_unstemmed Engineering Strategies to Overcome the Stability–Function Trade-Off in Proteins
title_short Engineering Strategies to Overcome the Stability–Function Trade-Off in Proteins
title_sort engineering strategies to overcome the stability–function trade-off in proteins
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8938945/
https://www.ncbi.nlm.nih.gov/pubmed/35258287
http://dx.doi.org/10.1021/acssynbio.1c00512
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