Cargando…

Using Mutability Landscapes To Guide Enzyme Thermostabilization

Thermostabilizing enzymes while retaining their activity and enantioselectivity for applied biocatalysis is an important topic in protein engineering. Rational and computational design strategies as well as directed evolution have been used successfully to thermostabilize enzymes. Herein, we describ...

Descripción completa

Detalles Bibliográficos
Autores principales: Guo, Chao, Ni, Yan, Biewenga, Lieuwe, Pijning, Tjaard, Thunnissen, Andy‐Mark W. H., Poelarends, Gerrit J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7821111/
https://www.ncbi.nlm.nih.gov/pubmed/32790123
http://dx.doi.org/10.1002/cbic.202000442
_version_ 1783639346629312512
author Guo, Chao
Ni, Yan
Biewenga, Lieuwe
Pijning, Tjaard
Thunnissen, Andy‐Mark W. H.
Poelarends, Gerrit J.
author_facet Guo, Chao
Ni, Yan
Biewenga, Lieuwe
Pijning, Tjaard
Thunnissen, Andy‐Mark W. H.
Poelarends, Gerrit J.
author_sort Guo, Chao
collection PubMed
description Thermostabilizing enzymes while retaining their activity and enantioselectivity for applied biocatalysis is an important topic in protein engineering. Rational and computational design strategies as well as directed evolution have been used successfully to thermostabilize enzymes. Herein, we describe an alternative mutability‐landscape approach that identified three single mutations (R11Y, R11I and A33D) within the enzyme 4‐oxalocrotonate tautomerase (4‐OT), which has potential as a biocatalyst for pharmaceutical synthesis, that gave rise to significant increases in apparent melting temperature T (m) (up to 20 °C) and in half‐life at 80 °C (up to 111‐fold). Introduction of these beneficial mutations in an enantioselective but thermolabile 4‐OT variant (M45Y/F50A) afforded improved triple‐mutant enzyme variants showing an up to 39 °C increase in T (m) value, with no reduction in catalytic activity or enantioselectivity. This study illustrates the power of mutability‐landscape‐guided protein engineering for thermostabilizing enzymes.
format Online
Article
Text
id pubmed-7821111
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher John Wiley and Sons Inc.
record_format MEDLINE/PubMed
spelling pubmed-78211112021-01-26 Using Mutability Landscapes To Guide Enzyme Thermostabilization Guo, Chao Ni, Yan Biewenga, Lieuwe Pijning, Tjaard Thunnissen, Andy‐Mark W. H. Poelarends, Gerrit J. Chembiochem Full Papers Thermostabilizing enzymes while retaining their activity and enantioselectivity for applied biocatalysis is an important topic in protein engineering. Rational and computational design strategies as well as directed evolution have been used successfully to thermostabilize enzymes. Herein, we describe an alternative mutability‐landscape approach that identified three single mutations (R11Y, R11I and A33D) within the enzyme 4‐oxalocrotonate tautomerase (4‐OT), which has potential as a biocatalyst for pharmaceutical synthesis, that gave rise to significant increases in apparent melting temperature T (m) (up to 20 °C) and in half‐life at 80 °C (up to 111‐fold). Introduction of these beneficial mutations in an enantioselective but thermolabile 4‐OT variant (M45Y/F50A) afforded improved triple‐mutant enzyme variants showing an up to 39 °C increase in T (m) value, with no reduction in catalytic activity or enantioselectivity. This study illustrates the power of mutability‐landscape‐guided protein engineering for thermostabilizing enzymes. John Wiley and Sons Inc. 2020-09-30 2021-01-05 /pmc/articles/PMC7821111/ /pubmed/32790123 http://dx.doi.org/10.1002/cbic.202000442 Text en © 2020 The Authors. Published by Wiley-VCH GmbH This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
spellingShingle Full Papers
Guo, Chao
Ni, Yan
Biewenga, Lieuwe
Pijning, Tjaard
Thunnissen, Andy‐Mark W. H.
Poelarends, Gerrit J.
Using Mutability Landscapes To Guide Enzyme Thermostabilization
title Using Mutability Landscapes To Guide Enzyme Thermostabilization
title_full Using Mutability Landscapes To Guide Enzyme Thermostabilization
title_fullStr Using Mutability Landscapes To Guide Enzyme Thermostabilization
title_full_unstemmed Using Mutability Landscapes To Guide Enzyme Thermostabilization
title_short Using Mutability Landscapes To Guide Enzyme Thermostabilization
title_sort using mutability landscapes to guide enzyme thermostabilization
topic Full Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7821111/
https://www.ncbi.nlm.nih.gov/pubmed/32790123
http://dx.doi.org/10.1002/cbic.202000442
work_keys_str_mv AT guochao usingmutabilitylandscapestoguideenzymethermostabilization
AT niyan usingmutabilitylandscapestoguideenzymethermostabilization
AT biewengalieuwe usingmutabilitylandscapestoguideenzymethermostabilization
AT pijningtjaard usingmutabilitylandscapestoguideenzymethermostabilization
AT thunnissenandymarkwh usingmutabilitylandscapestoguideenzymethermostabilization
AT poelarendsgerritj usingmutabilitylandscapestoguideenzymethermostabilization