Computational approach for designing thermostable Candida antarctica lipase B by molecular dynamics simulation
Candida antarctica lipase B (CalB) is one of the most useful enzyme for various reactions and bioconversions. Enhancing thermostability of CalB is required for industrial applications. In this study, we propose a computational design strategy to improve the thermostability of CalB. Molecular dynamic...
Published in: | Journal of Biotechnology |
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Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
ELSEVIER SCIENCE BV
2016
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Subjects: | |
Online Access: | https://scholarworks.unist.ac.kr/handle/201301/20337 http://www.sciencedirect.com/science/article/pii/S0168165614008621 https://doi.org/10.1016/j.jbiotec.2014.09.014 |
Summary: | Candida antarctica lipase B (CalB) is one of the most useful enzyme for various reactions and bioconversions. Enhancing thermostability of CalB is required for industrial applications. In this study, we propose a computational design strategy to improve the thermostability of CalB. Molecular dynamics simulations at various temperatures were used to investigate the common fluctuation sites in CalB, which are considered to be thermally weak points. The RosettaDesign algorithm was used to design the selected residues. The redesigned CalB was simulated to verify both the enhancement of intramolecular interactions and the lowering of the overall root-mean-square deviation (RMSD) values. The A251E mutant designed using this strategy showed a 2.5-fold higher thermostability than the wild-type CalB. This strategy could apply to other industry applicable enzymes. close |
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