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KMID : 1094720200250050734
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Biotechnology and Bioprocess Engineering
2020 Volume.25 No. 5 p.734 ~ p.741
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Assessment of Computational Modeling of Fc-Fc Receptor Binding Through Protein-protein Docking Tool
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Jebamani Petrina
Sokalingam Sriram
Sriramulu Dinesh Kumar
Jung Sang-Taek
Lee Sun-Gu
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Abstract
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Structural information of Fc-Fc receptor interaction may contribute to the design of drugs or therapeutic antibodies associated with the interaction. Computational protein-protein docking can be employed in structural study of protein-protein interaction, but its efficiency and reliability are still unstable and need to be validated and optimized for respective target protein complexes. In this study, we investigated and assessed the computational modeling efficiency of Fc-FcγR complex through HADDOCK by defining five different sets of active residues, a major parameter to determine the prediction efficiency of HADDOCK. The binding residues identified experimentally or the residues in the binding pocket were confirmed to be efficient active residues to achieve a high prediction efficiency, and too narrower or wider specification of active residues led to poor prediction efficiency. Most binding residues and crucial molecular interactions such as conserved interactions and hydrogen bonds in the crystal structure were reproduced in the best model. The HADDOCK docking condition determined in this study is expected to be applied to the computational characterization of various Fc-Fc receptor complexes and mutants.
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KEYWORD
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protein-protein docking, HADDOCK, Fc fragment, Fc receptor, binding residues, molecular interaction
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