Computational approach for designing thermostable Candida antarctica lipase B by molecular dynamics simulation
- Authors
- Park, Hyun June; Park, Kyungmoon; Kim, Yong Hwan; Yoo, Young Je
- Issue Date
- 20-Dec-2014
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Molecular dynamics simulation; Thermostability; Candida antarctica lipase B; Enzyme rigidity
- Citation
- JOURNAL OF BIOTECHNOLOGY, v.192, pp.66 - 70
- Journal Title
- JOURNAL OF BIOTECHNOLOGY
- Volume
- 192
- Start Page
- 66
- End Page
- 70
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/16504
- DOI
- 10.1016/j.jbiotec.2014.09.014
- ISSN
- 0168-1656
- Abstract
- 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. (C) 2014 Elsevier B.V. All rights reserved.
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Collections - College of Science and Technology > Department of Biological and Chemical Engineering > 1. Journal Articles
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