Vol.8, No.8, 2020, pp.863-878, doi:10.32604/jrm.2020.010830
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ARTICLE
Docking and Molecular Dynamics Study of the Carbohydrate Binding Module from Trichoderma reesei Cel7A on the Surfaces of the Cellulose IIII Crystal
  • Toshifumi Yui1,*, Takuya Uto2
1 Faculty of Engineering, University of Miyazaki, Miyazaki, 889-2192, Japan
2 Organization for Promotion of Tenure Track, University of Miyazaki, Miyazaki, 889-2192, Japan
* Corresponding Author: Toshifumi Yui. Email: tyui@cc.miyazaki-u.ac.jp
(This article belongs to this Special Issue: Nanocellulose and Nanocellulose-Derived Functional Materials)
Received 30 March 2020; Accepted 11 May 2020; Issue published 10 July 2020
Abstract
We report the systematic survey of the binding free energies at the interface between a carbohydrate binding module (CBM) of Cel7A and the cellulose IIII crystal model using grid docking searches and molecular dynamics simulations. The two hydrophobic crystal surfaces were involved in the distinct energy minima of the binding free energy. The complex models, each with the CBM at the minimum energy position, stably formed in the solution state. The binding free energies of the cellulose IIII complex models, based on both static and dynamics states, were comparable to those of the native cellulose complex models. However, the cellulose IIII crystal had a larger binding surface, which is compatible with the observed high enzymatic activity of Cel7A for the cellulose IIII substrate.
Keywords
Carbohydrate binding module; Cel7A; cellulose IIII; docking analysis
Cite This Article
Yui, T., Uto, T. (2020). Docking and Molecular Dynamics Study of the Carbohydrate Binding Module from Trichoderma reesei Cel7A on the Surfaces of the Cellulose IIII Crystal. Journal of Renewable Materials, 8(8), 863–878.
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