Unbiased picture of the ligand docking process for the hevein protein–oligosaccharide complex

Abstract The ligand-docking behavior of hevein, the major latex protein from the rubber tree Hevea brasiliensis (Euphorbiaceae), has been investigated by the unguided molecular dynamics (MD) simulation method. An oligosaccharide molecule, initially placed in an arbitrary position, was allowed to mov...

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Main Authors: Toshifumi Yui, Takuya Uto
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-87407-8
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author Toshifumi Yui
Takuya Uto
author_facet Toshifumi Yui
Takuya Uto
author_sort Toshifumi Yui
collection DOAJ
description Abstract The ligand-docking behavior of hevein, the major latex protein from the rubber tree Hevea brasiliensis (Euphorbiaceae), has been investigated by the unguided molecular dynamics (MD) simulation method. An oligosaccharide molecule, initially placed in an arbitrary position, was allowed to move around hevein for a prolonged simulation time, on the order of microseconds, with the expectation of spontaneous ligand docking of the oligosaccharide molecule to the binding site of hevein. In the binary solution system consisting of a hevein molecule and a chito-trisaccharide (GlcNAc3) molecule, three out of the six separate simulation runs successfully reproduced the complex structure of the observed binding from. It appeared that the surface topology formed by two aromatic side chains of the hevein molecule played a role in orienting the GlcNAc3 molecule in the correct direction. We also performed MD simulations of the ternary solution system containing a cello-hexasaccharide (Glc6) molecule in addition to hevein and a chito-hexasaccharide (GlcNAc6) molecule. Formation of hevein–GlcNAc6 complex structures was exclusively observed, while the Glc6 molecule remained in the solvent phase throughout the simulations. Obviously, the acetamide groups of GlcNAc play a role in detecting the binding site and its vicinity on the protein surface.
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spelling doaj-art-52d168ff71bc425cba5616651908df392025-02-02T12:22:43ZengNature PortfolioScientific Reports2045-23222025-01-011511910.1038/s41598-025-87407-8Unbiased picture of the ligand docking process for the hevein protein–oligosaccharide complexToshifumi Yui0Takuya Uto1Department of Applied Chemistry, Faculty of Engineering, University of MiyazakiDepartment of Applied Chemistry, Faculty of Engineering, University of MiyazakiAbstract The ligand-docking behavior of hevein, the major latex protein from the rubber tree Hevea brasiliensis (Euphorbiaceae), has been investigated by the unguided molecular dynamics (MD) simulation method. An oligosaccharide molecule, initially placed in an arbitrary position, was allowed to move around hevein for a prolonged simulation time, on the order of microseconds, with the expectation of spontaneous ligand docking of the oligosaccharide molecule to the binding site of hevein. In the binary solution system consisting of a hevein molecule and a chito-trisaccharide (GlcNAc3) molecule, three out of the six separate simulation runs successfully reproduced the complex structure of the observed binding from. It appeared that the surface topology formed by two aromatic side chains of the hevein molecule played a role in orienting the GlcNAc3 molecule in the correct direction. We also performed MD simulations of the ternary solution system containing a cello-hexasaccharide (Glc6) molecule in addition to hevein and a chito-hexasaccharide (GlcNAc6) molecule. Formation of hevein–GlcNAc6 complex structures was exclusively observed, while the Glc6 molecule remained in the solvent phase throughout the simulations. Obviously, the acetamide groups of GlcNAc play a role in detecting the binding site and its vicinity on the protein surface.https://doi.org/10.1038/s41598-025-87407-8Carbohydrate-binding proteinChito-oligosaccharideUnbiased ligand dockingMolecular dynamics simulation
spellingShingle Toshifumi Yui
Takuya Uto
Unbiased picture of the ligand docking process for the hevein protein–oligosaccharide complex
Scientific Reports
Carbohydrate-binding protein
Chito-oligosaccharide
Unbiased ligand docking
Molecular dynamics simulation
title Unbiased picture of the ligand docking process for the hevein protein–oligosaccharide complex
title_full Unbiased picture of the ligand docking process for the hevein protein–oligosaccharide complex
title_fullStr Unbiased picture of the ligand docking process for the hevein protein–oligosaccharide complex
title_full_unstemmed Unbiased picture of the ligand docking process for the hevein protein–oligosaccharide complex
title_short Unbiased picture of the ligand docking process for the hevein protein–oligosaccharide complex
title_sort unbiased picture of the ligand docking process for the hevein protein oligosaccharide complex
topic Carbohydrate-binding protein
Chito-oligosaccharide
Unbiased ligand docking
Molecular dynamics simulation
url https://doi.org/10.1038/s41598-025-87407-8
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