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The Application of Machine Learning to Molecular Dynamics Simulations

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Informatics".

Deadline for manuscript submissions: closed (20 April 2025) | Viewed by 876

Special Issue Editor


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Guest Editor
1. Dipartimento di Scienze della Salute, Università “Magna Græcia” di Catanzaro, 88100 Catanzaro, Italy
2. Net4Science Academic Spin-Off, Università “Magna Græcia” di Catanzaro, 88100 Catanzaro, Italy
Interests: computational chemistry; medicinal chemistry; infectiouse disease; drug repurposing; virtual screening; molecular dynamics; antioxidant activity
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Special Issue Information

Dear Colleagues,

Molecular dynamics (MD) allows for detailed study of the atomistic behavior of biomolecules, such as protein–ligand and protein–protein interactions and has played an important role in the field of drug discovery and development, providing powerful tools for improving the accuracy and efficiency of the process. Machine learning, through models like deep learning, accelerates the process, enabling faster predictions of key properties such as binding affinity, toxicity, and mechanisms of action. In molecular dynamics simulations, machine learning techniques can be used to analyze and optimize simulation data to improve simulation efficiency. By combining machine learning algorithms with molecular dynamics simulations, we can achieve faster and more accurate simulations, leading to a deeper understanding of the properties and behavior of molecular systems.

This Special Issue focuses on recent advances in machine learning to improve force fields, sampling, and property prediction in molecular dynamics simulations. The application of this approach can be primarily targeted at drug discovery, but can be extended to other aspects of protein structure and dynamics related to drug discovery. Innovative methods are also welcome to enhance the drug discovery process, the evaluation of mechanisms of action, and the study of atomistic details in biomolecular interactions, thereby contributing to a deeper and more precise understanding of molecular dynamics.

Dr. Isabella Romeo
Guest Editor

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Keywords

  • molecular dynamics simulations
  • machine learning
  • AI in drug discovery
  • pharmacokinetics prediction
  • protein folding simulations
  • toxicity prediction using ML
  • free energy calculations
  • virtual screening
  • protein–ligand interactions
  • protein–protein interactions

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Published Papers (2 papers)

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Research

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12 pages, 4114 KiB  
Article
Loop Dynamics Mediate Thermal Adaptation of Two Xylanases from Marine Bacteria
by Jinhua Zhuang, Yuxi Zhang, Yawei Wang, Zhenggang Han and Jiangke Yang
Int. J. Mol. Sci. 2025, 26(7), 3215; https://doi.org/10.3390/ijms26073215 - 30 Mar 2025
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Abstract
This study investigates the biochemical properties of two xylanases, ZgXyn10A and CaXyn10B, which are members of the glycoside hydrolase family 10 (GH10) and originate from the marine Bacteroidetes species Zobellia galactanivorans and Cellulophaga algicola, respectively. Utilizing an auto-induction expression system in Escherichia [...] Read more.
This study investigates the biochemical properties of two xylanases, ZgXyn10A and CaXyn10B, which are members of the glycoside hydrolase family 10 (GH10) and originate from the marine Bacteroidetes species Zobellia galactanivorans and Cellulophaga algicola, respectively. Utilizing an auto-induction expression system in Escherichia coli, high-purity recombinant forms of these enzymes were successfully produced. Biochemical assays revealed that ZgXyn10A and CaXyn10B exhibit optimal activities at 40 °C and 30 °C, respectively, and demonstrate a high sensitivity to temperature fluctuations. Unlike conventional low-temperature enzymes, these xylanases retain only a fraction of their maximal activity at lower temperatures. To gain deeper insights into the structural and functional properties of these marine xylanases, two thermostable GH10 xylanases, TmxB and CoXyn10A, which share comparable amino acid sequence identity with ZgXyn10A and CaXyn10B, were selected for structural comparison. All four marine xylanases share a nearly similar three-dimensional structural topology. Molecular dynamics simulation indicated a striking difference in structural fluctuations between the low-temperature and thermostable xylanases, as evidenced by the distinct root mean square deviation values. Moreover, root mean square fluctuation analysis specifically identified the β3-α3 and β7-α7 loop regions within the substrate-binding cleft as crucial determinants of the temperature characteristics of these GH10 xylanases. Our findings establish loop dynamics as a key evolutionary driver in the thermal adaptation of GH10 xylanases and propose a loop engineering strategy for the development of industrial biocatalysts with tailored temperature responses, particularly for lignocellulosic biomass processing under moderate thermal conditions. Full article
(This article belongs to the Special Issue The Application of Machine Learning to Molecular Dynamics Simulations)
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Review

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32 pages, 5003 KiB  
Review
Chalcopyrite Flotation, Molecular Design and Smart Industry: A Review
by Luis A. Rios, Melanny J. Barraza, Pedro A. Robles and Gonzalo R. Quezada
Int. J. Mol. Sci. 2025, 26(8), 3613; https://doi.org/10.3390/ijms26083613 - 11 Apr 2025
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Abstract
Chalcopyrite, the main source of copper worldwide, faces challenges in its flotation due to the complexity of its surface interactions and its coexistence with other minerals. Given the need for papers that show the current state of knowledge and new trends, this article [...] Read more.
Chalcopyrite, the main source of copper worldwide, faces challenges in its flotation due to the complexity of its surface interactions and its coexistence with other minerals. Given the need for papers that show the current state of knowledge and new trends, this article reviews the developments of chalcopyrite flotation, with a focus on molecular design. A comprehensive bibliography search was conducted using keywords and specific queries in the Scopus database, applying inclusion and exclusion criteria to select the most relevant articles. The results were structured in three research periods, according to temporal and thematic criteria. The first period approaches the fundamentals of the process, considering variables as reagent dosage, surface chemistry and the influence of metal ions on recovery and selectivity. The second period explores the analysis and measurement techniques for the development of more selective and sustainable reagents. The third period analyzes the integration of advanced tools, such as molecular dynamic simulations and machine learning, into the understanding of adsorption mechanisms and custom reagent design. It is expected that this work will become a theoretical reference in future research and for mining companies that intend to innovate in their copper flotation and recovery processes. Full article
(This article belongs to the Special Issue The Application of Machine Learning to Molecular Dynamics Simulations)
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