Mutations in the stereospecificity pocket and at the entrance of the active site of Candida antarctica lipase B enhancing enzyme enantioselectivity
International audience Two different parts of Candida antarctica lipase B (stereospecificity pocket at the bottom of the active site and hydrophobic tunnel leading to the active site) were redesigned by single- or double-point mutations, in order to better control and improve enzyme enantioselectivi...
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ftinsu:oai:HAL:hal-00647795v1 2023-05-15T13:51:18+02:00 Mutations in the stereospecificity pocket and at the entrance of the active site of Candida antarctica lipase B enhancing enzyme enantioselectivity Marton, Zsuzsanna Léonard, Valérie Syren, Per-Olof Bauer, Cédric Lamare, Sylvain Hult, Karl Tran, Vinh Graber, Marianne LIttoral ENvironnement et Sociétés - UMR 7266 (LIENSs) Institut national des sciences de l'Univers (INSU - CNRS)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Department of Biochemistry KTH Royal Institute of Technology Stockholm (KTH ) Department of Biochemistry- KTH UMR CNRS 6204 U3B Unité de Biotechnologie, Biocatalyse et Biorégulation (U3B) Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS) 2010-01-18 https://hal.science/hal-00647795 https://hal.science/hal-00647795/document https://hal.science/hal-00647795/file/MOLCAB-D-09-00286_corrected.pdf en eng HAL CCSD Elsevier hal-00647795 https://hal.science/hal-00647795 https://hal.science/hal-00647795/document https://hal.science/hal-00647795/file/MOLCAB-D-09-00286_corrected.pdf info:eu-repo/semantics/OpenAccess ISSN: 1381-1177 Journal of Molecular Catalysis B: Enzymatic https://hal.science/hal-00647795 Journal of Molecular Catalysis B: Enzymatic, 2010, 65, pp.11-17 [SDV.BIO]Life Sciences [q-bio]/Biotechnology [INFO.INFO-BT]Computer Science [cs]/Biotechnology info:eu-repo/semantics/article Journal articles 2010 ftinsu 2023-02-08T17:37:45Z International audience Two different parts of Candida antarctica lipase B (stereospecificity pocket at the bottom of the active site and hydrophobic tunnel leading to the active site) were redesigned by single- or double-point mutations, in order to better control and improve enzyme enantioselectivity toward secondary alcohols. Single-point isosteric mutations of Ser47 and Thr42 situated in the stereospecificity pocket gave rise to variants with doubled enantioselectivity toward pentan-2-ol, in solid/gas reactor. Besides, the width and shape of the hydrophobic tunnel leading to the active site was modified by producing the following single-point mutants: Ile189Ala, Leu278Val and Ala282Leu. For each of these variants a significant modification of enantioselectivity was observed compared to wild-type enzyme, indicating that discrimination of the enantiomers by the enzyme could also arise from their different accessibilities from the enzyme surface to the catalytic site. Article in Journal/Newspaper Antarc* Antarctica Institut national des sciences de l'Univers: HAL-INSU Double Point ENVELOPE(178.463,178.463,51.929,51.929) |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDV.BIO]Life Sciences [q-bio]/Biotechnology [INFO.INFO-BT]Computer Science [cs]/Biotechnology |
spellingShingle |
[SDV.BIO]Life Sciences [q-bio]/Biotechnology [INFO.INFO-BT]Computer Science [cs]/Biotechnology Marton, Zsuzsanna Léonard, Valérie Syren, Per-Olof Bauer, Cédric Lamare, Sylvain Hult, Karl Tran, Vinh Graber, Marianne Mutations in the stereospecificity pocket and at the entrance of the active site of Candida antarctica lipase B enhancing enzyme enantioselectivity |
topic_facet |
[SDV.BIO]Life Sciences [q-bio]/Biotechnology [INFO.INFO-BT]Computer Science [cs]/Biotechnology |
description |
International audience Two different parts of Candida antarctica lipase B (stereospecificity pocket at the bottom of the active site and hydrophobic tunnel leading to the active site) were redesigned by single- or double-point mutations, in order to better control and improve enzyme enantioselectivity toward secondary alcohols. Single-point isosteric mutations of Ser47 and Thr42 situated in the stereospecificity pocket gave rise to variants with doubled enantioselectivity toward pentan-2-ol, in solid/gas reactor. Besides, the width and shape of the hydrophobic tunnel leading to the active site was modified by producing the following single-point mutants: Ile189Ala, Leu278Val and Ala282Leu. For each of these variants a significant modification of enantioselectivity was observed compared to wild-type enzyme, indicating that discrimination of the enantiomers by the enzyme could also arise from their different accessibilities from the enzyme surface to the catalytic site. |
author2 |
LIttoral ENvironnement et Sociétés - UMR 7266 (LIENSs) Institut national des sciences de l'Univers (INSU - CNRS)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Department of Biochemistry KTH Royal Institute of Technology Stockholm (KTH ) Department of Biochemistry- KTH UMR CNRS 6204 U3B Unité de Biotechnologie, Biocatalyse et Biorégulation (U3B) Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Marton, Zsuzsanna Léonard, Valérie Syren, Per-Olof Bauer, Cédric Lamare, Sylvain Hult, Karl Tran, Vinh Graber, Marianne |
author_facet |
Marton, Zsuzsanna Léonard, Valérie Syren, Per-Olof Bauer, Cédric Lamare, Sylvain Hult, Karl Tran, Vinh Graber, Marianne |
author_sort |
Marton, Zsuzsanna |
title |
Mutations in the stereospecificity pocket and at the entrance of the active site of Candida antarctica lipase B enhancing enzyme enantioselectivity |
title_short |
Mutations in the stereospecificity pocket and at the entrance of the active site of Candida antarctica lipase B enhancing enzyme enantioselectivity |
title_full |
Mutations in the stereospecificity pocket and at the entrance of the active site of Candida antarctica lipase B enhancing enzyme enantioselectivity |
title_fullStr |
Mutations in the stereospecificity pocket and at the entrance of the active site of Candida antarctica lipase B enhancing enzyme enantioselectivity |
title_full_unstemmed |
Mutations in the stereospecificity pocket and at the entrance of the active site of Candida antarctica lipase B enhancing enzyme enantioselectivity |
title_sort |
mutations in the stereospecificity pocket and at the entrance of the active site of candida antarctica lipase b enhancing enzyme enantioselectivity |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.science/hal-00647795 https://hal.science/hal-00647795/document https://hal.science/hal-00647795/file/MOLCAB-D-09-00286_corrected.pdf |
long_lat |
ENVELOPE(178.463,178.463,51.929,51.929) |
geographic |
Double Point |
geographic_facet |
Double Point |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
ISSN: 1381-1177 Journal of Molecular Catalysis B: Enzymatic https://hal.science/hal-00647795 Journal of Molecular Catalysis B: Enzymatic, 2010, 65, pp.11-17 |
op_relation |
hal-00647795 https://hal.science/hal-00647795 https://hal.science/hal-00647795/document https://hal.science/hal-00647795/file/MOLCAB-D-09-00286_corrected.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766255124241448960 |