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In silico evaluation of S-adenosyl-L-homocysteine analogs as inhibitors of nsp14-viral cap N7 methyltranferase and PLpro of SARS-CoV-2: synthesis, molecular docking, physicochemical data, ADMET and molecular dynamics simulations studies. 作为 SARS-CoV-2 的 nsp14 病毒帽 N7 甲粒转移酶和 PLpro 抑制剂的 S-腺苷-L-高半胱氨酸类似物的硅学评估:合成、分子对接、理化数据、ADMET 和分子动力学模拟研究。
IF 2.7 3区 生物学
Journal of Biomolecular Structure & Dynamics Pub Date : 2025-04-01 Epub Date: 2023-12-26 DOI: 10.1080/07391102.2023.2297005
Ritika Srivastava, Saroj Kumar Panda, Parth Sarthi Sen Gupta, Anvita Chaudhary, Farha Naaz, Aditya K Yadav, Nand Kumar Ram, Malay Kumar Rana, Ramendra K Singh, Richa Srivastava
{"title":"<i>In silico</i> evaluation of <i>S</i>-adenosyl-L-homocysteine analogs as inhibitors of nsp14-viral cap N7 methyltranferase and PLpro of SARS-CoV-2: synthesis, molecular docking, physicochemical data, ADMET and molecular dynamics simulations studies.","authors":"Ritika Srivastava, Saroj Kumar Panda, Parth Sarthi Sen Gupta, Anvita Chaudhary, Farha Naaz, Aditya K Yadav, Nand Kumar Ram, Malay Kumar Rana, Ramendra K Singh, Richa Srivastava","doi":"10.1080/07391102.2023.2297005","DOIUrl":"10.1080/07391102.2023.2297005","url":null,"abstract":"<p><p>A series of <i>S</i>-adenosyl-L-homosysteine (SAH) analogs, with modification in the base and sugar moiety, have been designed, synthesized and screened as nsp14 and PLpro inhibitors of severe acute respiratory syndrome corona virus (SARS-CoV-2). The outcomes of ADMET (Adsorption, Distribution, Metabolism, Excretion, and Toxicity) studies demonstrated that the physicochemical properties of all analogs were permissible for development of these SAH analogs as antiviral agents. All molecules were screened against different SARS-CoV-2 targets using molecular docking. The docking results revealed that the SAH analogs interacted well in the active site of nsp14 protein having H-bond interactions with the amino acid residues Arg289, Val290, Asn388, Arg400, Phe401 and π-alkyl interactions with Arg289, Val290 and Phe426 of Nsp14-MTase site. These analogs also formed stable H-bonds with Leu163, Asp165, Arg167, Ser246, Gln270, Tyr274 and Asp303 residues of PLpro proteins and found to be quite stable complexes therefore behaved as probable nsp14 and PLpro inhibitors. Interestingly, analog <b>3</b> showed significant <i>in silico</i> activity against the nsp14 N7 methyltransferase of SARS-CoV-2. The molecular dynamics (MD) and post-MD results of analog <b>3</b> unambiguously established the higher stability of the nsp14 (N7 MTase):<b>3</b> complex and also indicated its behavior as probable nsp14 inhibitor like the reference sinefungin. The docking and MD simulations studies also suggested that sinefungin did act as SARS-CoV-2 PLpro inhibitor as well. This study's findings not only underscore the efficacy of the designed SAH analogs as potent inhibitors against crucial SARS-CoV-2 proteins but also pinpoint analog <b>3</b> as a particularly promising candidate. All the study provides valuable insights, paving the way for potential advancements in antiviral drug development against SARS-CoV-2.</p>","PeriodicalId":15272,"journal":{"name":"Journal of Biomolecular Structure & Dynamics","volume":" ","pages":"3258-3275"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139040035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Network pharmacology, molecular docking and molecular dynamics simulation of chalcone scaffold-based compounds targeting breast cancer receptors. 基于查尔酮支架的乳腺癌受体靶向化合物的网络药理学、分子对接和分子动力学模拟。
IF 2.7 3区 生物学
Journal of Biomolecular Structure & Dynamics Pub Date : 2025-04-01 Epub Date: 2023-12-27 DOI: 10.1080/07391102.2023.2296606
Noor Zafirah Ismail, Melati Khairuddean, Sadiq Abubakar, Hasni Arsad
{"title":"Network pharmacology, molecular docking and molecular dynamics simulation of chalcone scaffold-based compounds targeting breast cancer receptors.","authors":"Noor Zafirah Ismail, Melati Khairuddean, Sadiq Abubakar, Hasni Arsad","doi":"10.1080/07391102.2023.2296606","DOIUrl":"10.1080/07391102.2023.2296606","url":null,"abstract":"<p><p>Compounds with a chalcone scaffold-based structure have demonstrated promising anticancer biological activity. However, the molecular interactions between chalcone scaffold-based compounds and breast cancer-associated proteins remain unclear. Through network pharmacology, molecular docking, and molecular dynamics (MD) simulation analyses, compounds with a chalcone scaffold-based structure were evaluated for their interaction with potential breast cancer targets. The compounds were retrieved from the ASINEX database, resulting in 575,302 compounds. A total of 342 compounds with chalcone scaffold-based structures were discovered. From the 342 compounds that was analysed, ten were chosen due to their adherence to Lipinski's rule, having an appropriate range of lipophilicity (LOGP), and topological polar surface area (TPSA), and absence of any toxicity. Based on target intersection, 50 target genes were found and subjected to protein-protein interaction (PPI), gene ontology (GO), and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses. Four target genes were found to be involved in the breast cancer pathway. Consequently, molecular docking was utilised to analyse the molecular interactions between the compounds and four target protein receptors. Compound <b>211</b> exhibited the highest binding affinities for the epidermal growth factor receptor (EGFR), fibroblast growth factor receptor 1 (FGFR1), oestrogen receptor (ESR1), and cyclin dependent kinase 6 (CDK6) with values of -8.95 kcal/mol, -8.60 kcal/mol, -10.33 kcal/mol, and -9.90 kcal/mol, respectively. During MD simulation, compound <b>211</b> and its respective proteins were stable, compact, and had minimal flexibility. The findings provide foundations for future studies into the interaction underlying the anti-breast cancer potential of compounds with chalcone-based scaffold structures.</p>","PeriodicalId":15272,"journal":{"name":"Journal of Biomolecular Structure & Dynamics","volume":" ","pages":"3242-3257"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139040044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spectroscopic and molecular docking investigation on the interaction of a water-soluble Cu(II) complex containing diethanolamine and dipicolinic acid ligands with human serum albumin. 含有二乙醇胺和二蝉蜕酸配体的水溶性 Cu(II) 复合物与人血清白蛋白相互作用的光谱和分子对接研究。
IF 2.7 3区 生物学
Journal of Biomolecular Structure & Dynamics Pub Date : 2025-04-01 Epub Date: 2023-12-26 DOI: 10.1080/07391102.2023.2297812
Nahid Shahabadi, Azadeh Marzbani, Saba Hadidi, Zahra Mardani
{"title":"Spectroscopic and molecular docking investigation on the interaction of a water-soluble Cu(II) complex containing diethanolamine and dipicolinic acid ligands with human serum albumin.","authors":"Nahid Shahabadi, Azadeh Marzbani, Saba Hadidi, Zahra Mardani","doi":"10.1080/07391102.2023.2297812","DOIUrl":"10.1080/07391102.2023.2297812","url":null,"abstract":"<p><p>Under physiological conditions, spectroscopic techniques as well as molecular docking simulation have been used to investigate the binding interaction mechanism between Cu(II) complex containing Pyridine-2,6-dicarboxylic acid (PDCA) and Diethanolamine (DEA) ligands, [Cu(DEA)(PDCA)] and human serum albumin (HSA). UV spectral changes of protein in the presence of the Cu(II) complex suggested the formation of a Protein-Cu(II) complex conjugate with specific new structure. The Cu(II) complex quenches the intrinsic fluorescence of the HSA <i>via</i> a static mechanism in which van der Waals interactions along with hydrogen bonds are fundamental binding forces. Displacement experiments performed by warfarin and ibuprofen site probes predict that the Cu(II) complex is located in subdomain IIA, Sudlow site 1 of HSA. Molecular docking results showed close resemblance with experimental data.</p>","PeriodicalId":15272,"journal":{"name":"Journal of Biomolecular Structure & Dynamics","volume":" ","pages":"3366-3374"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139040045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An effective Alzheimer's disease segmentation and classification using Deep ResUnet and Efficientnet. 使用 Deep ResUnet 和 Efficientnet 进行有效的阿尔茨海默病分割和分类。
IF 2.7 3区 生物学
Journal of Biomolecular Structure & Dynamics Pub Date : 2025-04-01 Epub Date: 2023-12-20 DOI: 10.1080/07391102.2023.2294381
Battula Srinivasa Rao, Mudiyala Aparna, Jonnadula Harikiran, Tatireddy Subba Reddy
{"title":"An effective Alzheimer's disease segmentation and classification using Deep ResUnet and Efficientnet.","authors":"Battula Srinivasa Rao, Mudiyala Aparna, Jonnadula Harikiran, Tatireddy Subba Reddy","doi":"10.1080/07391102.2023.2294381","DOIUrl":"10.1080/07391102.2023.2294381","url":null,"abstract":"<p><p>Alzheimer's disease (AD) is a degenerative neurologic condition that results in the deterioration of several brain processes (e.g. memory loss). The most notable physical alteration in AD is the impairment of brain cells. An accurate examination of brain pictures may help to find the disease earlier because early diagnosis is crucial to enhancing patient care and treatment outcomes. Therefore, an easy and error-free system for AD diagnosis has recently received much research attention. Conventional image processing techniques sometimes cannot observe the significant features. As a result, the objective of this research is to develop an accurate and efficient method for identifying AD using magnetic resonance imaging (MRI). To begin with, the brain regions in the MRI images are segmented using a powerful Deep ResUnet-based approach. Then, the global and local features from the segmented images are recovered using a Multi-Scale Attention Siamese Network (MASNet)-based network. After extracting the features, the Slime Mould Algorithm-based feature selection process is conducted. Finally, the stages of AD are categorized using the EfficientNetB7 model. The efficacy of the presented method has been tested using brain MRI scans from the Kaggle dataset and the AD Neuroimaging Initiative (ADNI) dataset, and it achieves 99.31% and 99.38% accuracy, respectively. Finally, the study results show that the suggested method is helpful for accurate AD categorization.</p>","PeriodicalId":15272,"journal":{"name":"Journal of Biomolecular Structure & Dynamics","volume":" ","pages":"2840-2851"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138803522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In silico screening of natural products as uPAR inhibitors via multiple structure-based docking and molecular dynamics simulations. 通过多种基于结构的对接和分子动力学模拟,对作为 uPAR 抑制剂的天然产物进行硅学筛选。
IF 2.7 3区 生物学
Journal of Biomolecular Structure & Dynamics Pub Date : 2025-04-01 Epub Date: 2023-12-18 DOI: 10.1080/07391102.2023.2295386
Song Xie, Guiqian Yang, Juhong Wu, Longguang Jiang, Cai Yuan, Peng Xu, Mingdong Huang, Yichang Liu, Jinyu Li
{"title":"<i>In silico</i> screening of natural products as uPAR inhibitors via multiple structure-based docking and molecular dynamics simulations.","authors":"Song Xie, Guiqian Yang, Juhong Wu, Longguang Jiang, Cai Yuan, Peng Xu, Mingdong Huang, Yichang Liu, Jinyu Li","doi":"10.1080/07391102.2023.2295386","DOIUrl":"10.1080/07391102.2023.2295386","url":null,"abstract":"<p><p>Cancer remains one of the most pressing challenges to global healthcare, exerting a significant impact on patient life expectancy. Cancer metastasis is a critical determinant of the lethality and treatment resistance of cancer. The urokinase-type plasminogen activator receptor (uPAR) shows great potential as a target for anticancer and antimetastatic therapies. In this work, we aimed to identify potential uPAR inhibitors by structural dynamics-based virtual screenings against a natural product library on four representative apo-uPAR structural models recently derived from long-timescale molecular dynamics (MD) simulations. Fifteen potential inhibitors (<b>NP1</b>-<b>NP15</b>) were initially identified through molecular docking, consensus scoring, and visual inspection. Subsequently, we employed MD-based molecular mechanics-generalized Born surface area (MM-GBSA) calculations to evaluate their binding affinities to uPAR. Structural dynamics analyses further indicated that all of the top 6 compounds exhibited stable binding to uPAR and interacted with the critical residues in the binding interface between uPAR and its endogenous ligand uPA, suggesting their potential as uPAR inhibitors by interrupting the uPAR-uPA interaction. We finally predicted the ADMET properties of these compounds. The natural products <b>NP5</b>, <b>NP12</b>, and <b>NP14</b> with better binding affinities to uPAR than the uPAR inhibitors previously discovered by us were proven to be potentially orally active in humans. This work offers potential uPAR inhibitors that may contribute to the development of novel effective anticancer and antimetastatic therapeutics.</p>","PeriodicalId":15272,"journal":{"name":"Journal of Biomolecular Structure & Dynamics","volume":" ","pages":"3064-3075"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138803270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative studies of structure and dynamics of caprine, leporine, ovine, and equine serum albumins. 山羊血清白蛋白、鹅血清白蛋白、绵羊血清白蛋白和马血清白蛋白的结构和动力学比较研究。
IF 2.7 3区 生物学
Journal of Biomolecular Structure & Dynamics Pub Date : 2025-04-01 Epub Date: 2023-12-20 DOI: 10.1080/07391102.2023.2294378
Prapasiri Pongprayoon, Nattapon Kuntip, Thanathip Suwanasopee, Danai Jattawa, Jitti Niramitranon, Deanpen Japrung, Skorn Koonawootrittriron
{"title":"Comparative studies of structure and dynamics of caprine, leporine, ovine, and equine serum albumins.","authors":"Prapasiri Pongprayoon, Nattapon Kuntip, Thanathip Suwanasopee, Danai Jattawa, Jitti Niramitranon, Deanpen Japrung, Skorn Koonawootrittriron","doi":"10.1080/07391102.2023.2294378","DOIUrl":"10.1080/07391102.2023.2294378","url":null,"abstract":"<p><p>Serum albumin (SA) is the most prevalent protein found in blood. Human albumin was used as an albumin substitute in hypoalbuminemia pets due to high sequence similarity. SAs from furry animals were also reported to be the major indoor allergens. Sensitizing to one of SAs coupled with high sequence identity can lead to cross-reactive antibodies in allergic individuals. Thus, understanding the structural and dynamic characters of SAs is crucial for not only albumin substitution but also allergen therapy. Herein, Molecular dynamics (MD) simulations were performed to elucidate the structural and dynamic dissimilarity and similarity of economic animals [equine (ESA), caprine (CASA), ovine (OSA), and leporine (LSA)] to albumins from human (HSA), bovine (BSA), porcine (PSA), and pets [cat (FSA) and dog (CSA)]. The aim is to explore the feasibility of HSA substitution and understand how albumins cause the cross-reactivity. Generally, all albumins studied here show the scissoring motion like other mammalian albumins. The uniqueness of each albumin is defined by different sequence identity of domain I. Also, the drug binding affinity of studied albumins differs from HSA, CSA, FSA, BSA, and PSA. Especially, LSA displays the most deviated behavior from the group. So, such albumin may not be suitable for albumin therapy for pets and humans. CASA, OSA, and ESA share similar characteristics, therefore it is possible to use them to monitor the osmotic pressure among their species, but the allergenic response must be seriously considered. An insight obtained here can be useful to develop albumin therapy and understand clinical allergy.</p>","PeriodicalId":15272,"journal":{"name":"Journal of Biomolecular Structure & Dynamics","volume":" ","pages":"2772-2780"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138803685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
3D-QSAR and ADMET studies of morpholino-pyrimidine inhibitors of DprE1 from Mycobacterium tuberculosis. 结核分枝杆菌 DprE1 吗啉嘧啶抑制剂的 3D-QSAR 和 ADMET 研究。
IF 2.7 3区 生物学
Journal of Biomolecular Structure & Dynamics Pub Date : 2025-04-01 Epub Date: 2023-12-19 DOI: 10.1080/07391102.2023.2294496
Sonali Tayal, Vasundhara Singh, Sonika Bhatnagar
{"title":"3D-QSAR and ADMET studies of morpholino-pyrimidine inhibitors of DprE1 from <i>Mycobacterium tuberculosis</i>.","authors":"Sonali Tayal, Vasundhara Singh, Sonika Bhatnagar","doi":"10.1080/07391102.2023.2294496","DOIUrl":"10.1080/07391102.2023.2294496","url":null,"abstract":"<p><p>DprE1 is involved in the synthesis of <i>Mycobacterium tuberculosis</i> cell wall and is a potent drug target for Tuberculosis (TB) treatment. The structure and dynamics of the loops L-I and L-II flanking the inhibitor binding site was studied using molecular dynamics (MD) simulation and MMPBSA in Amber v18. Docking and three-dimensional quantitative structure-activity relationship (3D-QSAR) of 55 Morpholino-pyrimidine (MP) inhibitors was carried out using Autodock v1.2.0 and Forge v10. ADMET analysis was done using SwissADME and pkCSM. All MP inhibitors docked in the DprE1 binding pocket, making contacts with L-II residues. MD studies showed that L-I and L-II unfold in the absence of the inhibitor but fold stably structure with reduced protein motions in the presence of MP-38, the highest affinity inhibitor. This was confirmed by k-means clustering and secondary structure analysis. L-II residues, L317, F320 and R325 contributed most towards the MMPBSA binding free energy of MP-38. A robust field-based 3D-QSAR model showed values of r<sup>2</sup><sub>train</sub> = 0.982, r<sup>2</sup><sub>test</sub> = 0.702 and q<sup>2</sup> = 0.516. The MP inhibitor field points were broadly divided into negative electrostatics near the A, B rings and hydrophobic electrostatics near the D, E rings. Addition of negative groups at methanone position and ring B as well as addition of hydrophobic and bulky groups at ring E will improve activity. Highly active compounds 47, 49 and 50 of MP series exhibited highly favourable drug-like properties. SAR and ADMET insights attained from this model will help in the development of active DprE1 inhibitors in future.</p>","PeriodicalId":15272,"journal":{"name":"Journal of Biomolecular Structure & Dynamics","volume":" ","pages":"2948-2967"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138803435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
T6496 targeting EGFR mediated by T790M or C797S mutant: machine learning, virtual screening and bioactivity evaluation study. 以 T790M 或 C797S 突变体介导的表皮生长因子受体为靶点的 T6496:机器学习、虚拟筛选和生物活性评估研究。
IF 2.7 3区 生物学
Journal of Biomolecular Structure & Dynamics Pub Date : 2025-04-01 Epub Date: 2024-01-04 DOI: 10.1080/07391102.2023.2300756
Linxiao Wang, Dang Fan, Wei Ruan, Xiaoling Huang, Wufu Zhu, Yuanbiao Tu, Pengwu Zheng
{"title":"T6496 targeting EGFR mediated by T790M or C797S mutant: machine learning, virtual screening and bioactivity evaluation study.","authors":"Linxiao Wang, Dang Fan, Wei Ruan, Xiaoling Huang, Wufu Zhu, Yuanbiao Tu, Pengwu Zheng","doi":"10.1080/07391102.2023.2300756","DOIUrl":"10.1080/07391102.2023.2300756","url":null,"abstract":"<p><p>Acquired resistance to EGFR is a major impediment in lung cancer treatment, highlighting the urgent need to discover novel compounds to overcome EGFR drug resistance. In this study, we utilized in silico methods and bioactivity evaluation for drug discovery to identify novel active anticancer agents targeting EGFR<sup>T790M/L858R</sup> and EGFR<sup>T790M/C797S/L858R</sup>. Firstly, we employed ROC-guided machine learning to retrieve nearly 7,765 compounds from a collection of three libraries (comprising over 220,000 compounds). Next, virtual screening, cluster analysis, and binding model analysis were employed to identify six potential compounds. Additionally, the kinase assay revealed that these six compounds demonstrated higher sensitivity to EGFR than c-Met. Among these compounds, <b>T6496</b> inhibited both EGFR<sup>T790M/L858R</sup> and EGFR<sup>T790M/C797S/L858R</sup> kinases, with an IC<sub>50</sub> of 3.30 and 8.72 μM. Furthermore, we evaluated the antitumor effects of the six selected compounds, and compound <b>T6496</b> exhibited the strongest anticancer activity against H1975 cell lines, with an IC<sub>50</sub> value of 2.7 μM. These results suggest that <b>T6496</b> may mitigate EGFR resistance caused by T790M or C797S mutations. Moreover, the AO staining assay, JC-1 staining, ROS experiment and hemolytic toxicity evaluation revealed that <b>T6496</b> could induce apoptosis in H1975 cell lines in a time-dependent and concentration-dependent manner, and is a potential compound for further structural optimization.</p>","PeriodicalId":15272,"journal":{"name":"Journal of Biomolecular Structure & Dynamics","volume":" ","pages":"3144-3155"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139087035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Deep learning-based design and screening of benzimidazole-pyrazine derivatives as adenosine A2B receptor antagonists. 基于深度学习设计和筛选苯并咪唑吡嗪衍生物作为腺苷 A2B 受体拮抗剂。
IF 2.7 3区 生物学
Journal of Biomolecular Structure & Dynamics Pub Date : 2025-04-01 Epub Date: 2023-12-22 DOI: 10.1080/07391102.2023.2295974
Rui Qin, Hao Zhang, Weifeng Huang, Zhenglin Shao, Jinping Lei
{"title":"Deep learning-based design and screening of benzimidazole-pyrazine derivatives as adenosine A<sub>2B</sub> receptor antagonists.","authors":"Rui Qin, Hao Zhang, Weifeng Huang, Zhenglin Shao, Jinping Lei","doi":"10.1080/07391102.2023.2295974","DOIUrl":"10.1080/07391102.2023.2295974","url":null,"abstract":"<p><p>The Adenosine A<sub>2B</sub> receptor (A<sub>2B</sub>AR) is considered a novel potential target for the immunotherapy of cancer, and A<sub>2B</sub>AR antagonists have an inhibitory effect on tumor growth, proliferation, and metastasis. In our previous studies, we identified a class of benzimidazole-pyrazine scaffolds whose derivatives exhibited the antagonistic effect but lacked subtype selectivity towards A<sub>2B</sub>AR. In this work, we developed a scaffold-based protocol that incorporates a deep generative model and multilayer virtual screening to design benzimidazole-pyrazine derivatives as potential selective A<sub>2B</sub>AR antagonists. By utilizing a generative model with reported A<sub>2B</sub>AR antagonists as the training set, we built up a scaffold-focused library of benzimidazole-pyrazine derivatives and processed a virtual screening protocol to discover potential A<sub>2B</sub>AR antagonists. Finally, five molecules with different Bemis-Murcko scaffolds were identified and exhibited higher binding free energies than the reference molecule 12o. Further computational analysis revealed that the 3-benzyl derivative ABA-1266 presented high selectivity toward A<sub>2B</sub>AR and showed preferred draggability, providing future potent development of selective A<sub>2B</sub>AR antagonists.</p>","PeriodicalId":15272,"journal":{"name":"Journal of Biomolecular Structure & Dynamics","volume":" ","pages":"3225-3241"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138885087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structure-based drug discovery to identify SARS-CoV2 spike protein-ACE2 interaction inhibitors. 基于结构的药物发现,确定 SARS-CoV2 穗状病毒-ACE2 相互作用抑制剂。
IF 2.7 3区 生物学
Journal of Biomolecular Structure & Dynamics Pub Date : 2025-04-01 Epub Date: 2024-01-04 DOI: 10.1080/07391102.2023.2300060
Ravi Kant, Rahul Kaushik, Madhu Chopra, Daman Saluja
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