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Molecular Docking Simulation on the Interactions of Laccase From Trametes Versicolor With Nonylphenol and Octylphenol Isomers

Molecular Docking Simulation on the Interactions of Laccase From Trametes Versicolor With Nonylphenol and Octylphenol Isomers

Dan Mo, Guangming Zeng, Xingzhong Yuan, Ming Chen, Liang Hu, Hui Li, Hou Wang, Piao Xu, Cui Lai, Jia Wan, Chen Zhang, Min Cheng

Bioprocess Biosyst Eng. 2018 Mar;41(3):331-343.

PMID: 29185034

Abstract:

The biodegradation of nonylphenol (NP) and octylphenol (OP) isomers by laccase has attracted increasing concerns. However, the interaction mechanism between these isomers and laccase remains unclear, especially for fungal laccase. In this work, molecular docking was employed to study this issue. The results indicated that the structural characteristic of alkyl chain (position and branching degree) affected the interactions between Trametes versicolor (T. versicolor) laccase and isomers. The binding affinity between them was closely related to the position and branching degree of alkyl chain in isomers. The binding affinities between linear isomers and T. versicolor laccase were para-position < meta-position < ortho-position. For selected branched 4-NP, the isomers with bulky α-substituent in alkyl chain had higher binding affinities. In addition, hydrophobic contacts between T. versicolor laccase and NP or OP isomers were necessary, while H-bonds were optional. The isomers with similar structure may have more common residues involved in hydrophobic contacts. The H-bonds of selected NPs and OPs were all connected with phenolic hydroxyl. These findings provide an insight into detailed interaction mechanism between T. versicolor laccase and isomers of NP and OP. It is helpful to broaden the knowledge of degradation technology of NPs and OPs and provide theoretical basis on biological remediation of these contaminants.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP80498153-B	Laccase from Trametes versicolor		80498-15-3	Price

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