Molecular Informatics最新文献_第3页

Virtual screening of natural products to enhance melanogenosis. 虚拟筛选提高黑色素生成的天然产品。

IF 3.6 4区医学

Molecular Informatics Pub Date : 2024-06-12 DOI: 10.1002/minf.202300335

Colin Bournez, José-Manuel Gally, Samia Aci-Sèche, Philippe Bernard, Pascal Bonnet

引用次数: 0

Prediction of blood-brain barrier permeability using machine learning approaches based on various molecular representation. 利用基于各种分子表征的机器学习方法预测血脑屏障通透性。

IF 3.6 4区医学

Molecular Informatics Pub Date : 2024-06-12 DOI: 10.1002/minf.202300327

Li Liang, Zhiwen Liu, Xinyi Yang, Yanmin Zhang, Haichun Liu, Yadong Chen

{"title":"Prediction of blood-brain barrier permeability using machine learning approaches based on various molecular representation.","authors":"Li Liang, Zhiwen Liu, Xinyi Yang, Yanmin Zhang, Haichun Liu, Yadong Chen","doi":"10.1002/minf.202300327","DOIUrl":"https://doi.org/10.1002/minf.202300327","url":null,"abstract":"The assessment of compound blood-brain barrier (BBB) permeability poses a significant challenge in the discovery of drugs targeting the central nervous system. Conventional experimental approaches to measure BBB permeability are labor-intensive, cost-ineffective, and time-consuming. In this study, we constructed six machine learning classification models by combining various machine learning algorithms and molecular representations. The model based on ExtraTree algorithm and random partitioning strategy obtains the best prediction result, with AUC value of 0.932±0.004 and balanced accuracy (BA) of 0.837±0.010 for the test set. We employed the SHAP method to identify important features associated with BBB permeability. In addition, matched molecular pair (MMP) analysis and representative substructure derivation method were utilized to uncover the transformation rules and distinctive structural features of BBB permeable compounds. The machine learning models proposed in this work can serve as an effective tool for assessing BBB permeability in the drug discovery for central nervous system disease.","PeriodicalId":18853,"journal":{"name":"Molecular Informatics","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141306332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

BIOMX-DB: A web application for the BIOFACQUIM natural product database. BIOMX-DB：BIOFACQUIM 天然产品数据库的网络应用程序。

IF 3.6 4区医学

Molecular Informatics Pub Date : 2024-06-05 DOI: 10.1002/minf.202400060

Fernando Martínez-Urrutia, José L Medina-Franco

引用次数: 0

Prediction of adverse drug reactions due to genetic predisposition using deep neural networks. 利用深度神经网络预测遗传倾向导致的药物不良反应。

IF 3.6 4区医学

Molecular Informatics Pub Date : 2024-06-01 Epub Date: 2024-06-08 DOI: 10.1002/minf.202400021

Bryan Dafniet, Olivier Taboureau

{"title":"Prediction of adverse drug reactions due to genetic predisposition using deep neural networks.","authors":"Bryan Dafniet, Olivier Taboureau","doi":"10.1002/minf.202400021","DOIUrl":"10.1002/minf.202400021","url":null,"abstract":"Drug development is a long and costly process, often limited by the toxicity and adverse drug reactions (ADRs) caused by drug candidates. Even on the market, some drugs can cause strong ADRs that can vary depending on an individual polymorphism. The development of Genome-wide association studies (GWAS) allowed the discovery of genetic variants of interest that may cause these effects. In this study, the objective was to investigate a deep learning approach to predict genetic variations potentially related to ADRs. We used single nucleotide polymorphisms (SNPs) information from dbSNP to create a network based on ADR-drug-target-mutations and extracted matrixes of interaction to build deep Neural Networks (DNN) models. Considering only information about mutations known to impact drug efficacy and drug safety from PharmGKB and drug adverse reactions based on the MedDRA System Organ Classes (SOCs), these DNN models reached a balanced accuracy of 0.61 in average. Including molecular fingerprints representing structural features of the drugs did not improve the performance of the models. To our knowledge, this is the first model that exploits DNN to predict ADR-drug-target-mutations. Although some improvements are suggested, these models can be of interest to analyze multiple compounds over all of the genes and polymorphisms information accessible and thus pave the way in precision medicine.","PeriodicalId":18853,"journal":{"name":"Molecular Informatics","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141293574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Accelerating Molecular Docking using Machine Learning Methods. 利用机器学习方法加速分子对接。

IF 3.6 4区医学

Molecular Informatics Pub Date : 2024-06-01 Epub Date: 2024-06-08 DOI: 10.1002/minf.202300167

Abdulsalam Y Bande, Sefer Baday

{"title":"Accelerating Molecular Docking using Machine Learning Methods.","authors":"Abdulsalam Y Bande, Sefer Baday","doi":"10.1002/minf.202300167","DOIUrl":"10.1002/minf.202300167","url":null,"abstract":"Virtual screening (VS) is one of the well-established approaches in drug discovery which speeds up the search for a bioactive molecule and, reduces costs and efforts associated with experiments. VS helps to narrow down the search space of chemical space and allows selecting fewer and more probable candidate compounds for experimental testing. Docking calculations are one of the commonly used and highly appreciated structure-based drug discovery methods. Databases for chemical structures of small molecules have been growing rapidly. However, at the moment virtual screening of large libraries via docking is not very common. In this work, we aim to accelerate docking studies by predicting docking scores without explicitly performing docking calculations. We experimented with an attention based long short-term memory (LSTM) neural network for an efficient prediction of docking scores as well as other machine learning models such as XGBoost. By using docking scores of a small number of ligands we trained our models and predicted docking scores of a few million molecules. Specifically, we tested our approaches on 11 datasets that were produced from in-house drug discovery studies. On average, by training models using only 7000 molecules we predicted docking scores of approximately 3.8 million molecules with R2 (coefficient of determination) of 0.77 and Spearman rank correlation coefficient of 0.85. We designed the system with ease of use in mind. All the user needs to provide is a csv file containing SMILES and their respective docking scores, the system then outputs a model that the user can use for the prediction of docking score for a new molecule.","PeriodicalId":18853,"journal":{"name":"Molecular Informatics","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141293572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

FetoML: Interpretable predictions of the fetotoxicity of drugs based on machine learning approaches. FetoML：基于机器学习方法的药物胎儿毒性可解读预测。

IF 3.6 4区医学

Molecular Informatics Pub Date : 2024-06-01 Epub Date: 2024-06-08 DOI: 10.1002/minf.202300312

Myeonghyeon Jeong, Sunyong Yoo

{"title":"FetoML: Interpretable predictions of the fetotoxicity of drugs based on machine learning approaches.","authors":"Myeonghyeon Jeong, Sunyong Yoo","doi":"10.1002/minf.202300312","DOIUrl":"10.1002/minf.202300312","url":null,"abstract":"Pregnant females may use medications to manage health problems that develop during pregnancy or that they had prior to pregnancy. However, using medications during pregnancy has a potential risk to the fetus. Assessing the fetotoxicity of drugs is essential to ensure safe treatments, but the current process is challenged by ethical issues, time, and cost. Therefore, the need for in silico models to efficiently assess the fetotoxicity of drugs has recently emerged. Previous studies have proposed successful machine learning models for fetotoxicity prediction and even suggest molecular substructures that are possibly associated with fetotoxicity risks or protective effects. However, the interpretation of the decisions of the models on fetotoxicity prediction for each drug is still insufficient. This study constructed machine learning-based models that can predict the fetotoxicity of drugs while providing explanations for the decisions. For this, permutation feature importance was used to identify the general features that the model made significant in predicting the fetotoxicity of drugs. In addition, features associated with fetotoxicity for each drug were analyzed using the attention mechanism. The predictive performance of all the constructed models was significantly high (AUROC: 0.854-0.974, AUPR: 0.890-0.975). Furthermore, we conducted literature reviews on the predicted important features and found that they were highly associated with fetotoxicity. We expect that our model will benefit fetotoxicity research by providing an evaluation of fetotoxicity risks for drugs or drug candidates, along with an interpretation of that prediction.","PeriodicalId":18853,"journal":{"name":"Molecular Informatics","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141293573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Kinematic analysis of kinases and their oncogenic mutations - Kinases and their mutation kinematic analysis. 激酶及其致癌突变的运动学分析 - 激酶及其突变的运动学分析。

IF 3.6 4区医学

Molecular Informatics Pub Date : 2024-06-01 Epub Date: 2024-06-08 DOI: 10.1002/minf.202300250

Xiyu Chen, Sigrid Leyendecker

{"title":"Kinematic analysis of kinases and their oncogenic mutations - Kinases and their mutation kinematic analysis.","authors":"Xiyu Chen, Sigrid Leyendecker","doi":"10.1002/minf.202300250","DOIUrl":"10.1002/minf.202300250","url":null,"abstract":"Protein kinases are crucial cellular enzymes that facilitate the transfer of phosphates from adenosine triphosphate (ATP) to their substrates, thereby regulating numerous cellular activities. Dysfunctional kinase activity often leads to oncogenic conditions. Chosen by using structural similarity to 5UG9, we selected 79 crystal structures from the PDB and based on the position of the phenylalanine side chain in the DFG motif, we classified these 79 crystal structures into 5 group clusters. Our approach applies our kinematic flexibility analysis (KFA) to explore the flexibility of kinases in various activity states and examine the impact of the activation loop on kinase structure. KFA enables the rapid decomposition of macromolecules into different flexibility regions, allowing comprehensive analysis of conformational structures. The results reveal that the activation loop of kinases acts as a \"lock\" that stabilizes the active conformation of kinases by rigidifying the adjacent α-helices. Furthermore, we investigate specific kinase mutations, such as the L858R mutation commonly associated with non-small cell lung cancer, which induces increased flexibility in active-state kinases. In addition, through analyzing the hydrogen bond pattern, we examine the substructure of kinases in different states. Notably, active-state kinases exhibit a higher occurrence of α-helices compared to inactive-state kinases. This study contributes to the understanding of biomolecular conformation at a level relevant to drug development.","PeriodicalId":18853,"journal":{"name":"Molecular Informatics","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141288332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cover Picture: (Mol. Inf. 5/2024) 封面图片：（Mol.Inf. 5/2024）

IF 3.6 4区医学

Molecular Informatics Pub Date : 2024-05-23 DOI: 10.1002/minf.202480501

引用次数: 0

Comparison of deep learning models with simple method to assess the problem of antimicrobial peptides prediction. 深度学习模型与简单方法的比较，以评估抗菌肽预测问题。

IF 3.6 4区医学

Molecular Informatics Pub Date : 2024-05-01 Epub Date: 2023-04-07 DOI: 10.1002/minf.202200181

M Y Lobanov, M V Slizen, N V Dovidchenko, A V Panfilov, A A Surin, I V Likhachev, O V Galzitskaya

引用次数: 0

The macrocycle inhibitor landscape of SLC-transporter. SLC-转运体的大环抑制剂格局。

IF 3.6 4区医学

Molecular Informatics Pub Date : 2024-05-01 Epub Date: 2024-03-05 DOI: 10.1002/minf.202300287

Nejra Granulo, Sergey Sosnin, Daniela Digles, Gerhard F Ecker

引用次数: 0