Current opinion in structural biology最新文献

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Language models for protein design
IF 6.1 2区 生物学
Current opinion in structural biology Pub Date : 2025-03-06 DOI: 10.1016/j.sbi.2025.103027
Jin Sub Lee , Osama Abdin , Philip M. Kim
{"title":"Language models for protein design","authors":"Jin Sub Lee ,&nbsp;Osama Abdin ,&nbsp;Philip M. Kim","doi":"10.1016/j.sbi.2025.103027","DOIUrl":"10.1016/j.sbi.2025.103027","url":null,"abstract":"<div><div>The recent surge of large language models has shown that machines are capable of reading, understanding, and communicating through language, even sometimes displaying capabilities surpassing those of humans. Proteins can be represented as strings of amino acids akin to words in a sentence, and the same principles of language modeling can be used to learn informative representations for protein structure prediction, design, and property prediction. In this review, we will focus on applications of language modeling to protein design. We will first cover the foundations of protein language modeling and discuss recent advances such as context-conditioned design and structure integration. We also consider current shortcomings and promising avenues of research for protein language modeling to facilitate future development of improved protein language models for design.</div></div>","PeriodicalId":10887,"journal":{"name":"Current opinion in structural biology","volume":"92 ","pages":"Article 103027"},"PeriodicalIF":6.1,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Extending the reach of single-particle cryoEM.
IF 6.1 2区 生物学
Current opinion in structural biology Pub Date : 2025-03-03 DOI: 10.1016/j.sbi.2025.103005
Ardan Patwardhan, Richard Henderson, Christopher J Russo
{"title":"Extending the reach of single-particle cryoEM.","authors":"Ardan Patwardhan, Richard Henderson, Christopher J Russo","doi":"10.1016/j.sbi.2025.103005","DOIUrl":"https://doi.org/10.1016/j.sbi.2025.103005","url":null,"abstract":"<p><p>Molecular structure determination using electron cryomicroscopy (cryoEM) is poised in early 2025 to surpass X-ray crystallography as the most used method for experimentally determining new structures. But the technique has not reached the physical limits set by radiation damage and the signal-to-noise ratio in individual images of molecules. By examining these limits and comparing the number and resolution of structures determined versus molecular weight, we identify opportunities for extending the application of single-particle cryoEM. This will help guide technology development to continue the exponential growth of structural biology.</p>","PeriodicalId":10887,"journal":{"name":"Current opinion in structural biology","volume":" ","pages":"103005"},"PeriodicalIF":6.1,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143556200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Super-resolving chromatin in its own terms: Recent approaches to portray genomic organization
IF 6.1 2区 生物学
Current opinion in structural biology Pub Date : 2025-03-03 DOI: 10.1016/j.sbi.2025.103021
Manuel Fernández Merino , Maria Pia Cosma , Maria Victoria Neguembor
{"title":"Super-resolving chromatin in its own terms: Recent approaches to portray genomic organization","authors":"Manuel Fernández Merino ,&nbsp;Maria Pia Cosma ,&nbsp;Maria Victoria Neguembor","doi":"10.1016/j.sbi.2025.103021","DOIUrl":"10.1016/j.sbi.2025.103021","url":null,"abstract":"<div><div>Chromatin organizes in a highly hierarchical manner that affects gene regulation. While many discoveries in the field have been driven by genomic techniques, super-resolution microscopy has proved to be an essential method to fully understand folding in single cells. In this article we summarize the main strategies to probe chromatin architecture using single-molecule localization microscopy and some of the key findings this has enabled. We specifically focus on the recent developments in techniques using oligonucleotide libraries and how their versatility drives multiplexing. These multiplexed libraries allow to super-resolve architectural proteins, DNA folding and transcription. We compare the latest results in this field and reflect about the future of these methods.</div></div>","PeriodicalId":10887,"journal":{"name":"Current opinion in structural biology","volume":"92 ","pages":"Article 103021"},"PeriodicalIF":6.1,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143529249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Allosteric modulation of protein–protein interactions in signal transduction with Nanobodies
IF 6.1 2区 生物学
Current opinion in structural biology Pub Date : 2025-03-01 DOI: 10.1016/j.sbi.2025.103022
Els Pardon , Alex Wohlkönig , Jan Steyaert
{"title":"Allosteric modulation of protein–protein interactions in signal transduction with Nanobodies","authors":"Els Pardon ,&nbsp;Alex Wohlkönig ,&nbsp;Jan Steyaert","doi":"10.1016/j.sbi.2025.103022","DOIUrl":"10.1016/j.sbi.2025.103022","url":null,"abstract":"<div><div>Nanobodies (Nbs), the variable domains of heavy-chain only antibodies that naturally occur in camelids, are exquisite molecular tools to stabilize dynamic proteins in unique functional conformations. Recent developments in Nb discovery allow to select allosteric Nbs that perturb the distribution of conformational ensembles of protein complexes that mediate signaling, leading to the allosteric modulation of the signals they transmit. Evidence is also accumulating that such conformational specific Nbs do not stabilize new conformational states but rather change the distribution of existing states to allosterically induce transitions, imprinted by the natural ligands of the system.</div></div>","PeriodicalId":10887,"journal":{"name":"Current opinion in structural biology","volume":"92 ","pages":"Article 103022"},"PeriodicalIF":6.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Structural insights into the recognition of native nucleosomes by pioneer transcription factors
IF 6.1 2区 生物学
Current opinion in structural biology Pub Date : 2025-03-01 DOI: 10.1016/j.sbi.2025.103024
Bing-Rui Zhou, Benjamin Orris, Ruifang Guan, Tengfei Lian, Yawen Bai
{"title":"Structural insights into the recognition of native nucleosomes by pioneer transcription factors","authors":"Bing-Rui Zhou,&nbsp;Benjamin Orris,&nbsp;Ruifang Guan,&nbsp;Tengfei Lian,&nbsp;Yawen Bai","doi":"10.1016/j.sbi.2025.103024","DOIUrl":"10.1016/j.sbi.2025.103024","url":null,"abstract":"<div><div>Pioneer transcription factors possess the unique ability to bind to nucleosomal DNA and locally open closed chromatin, enabling the binding of additional chromatin-associated factors. These factors are pivotal in determining cell fate. Structural studies of pioneer transcription factors interacting with nucleosomes have predominantly relied on model systems incorporating canonical DNA motifs within synthetic, strongly positioned DNA. However, recent advances have revealed structures of several pioneer transcription factors bound to their native nucleosome targets at gene enhancers involved in cell reprogramming. These findings offer fresh insights into how pioneer transcription factors recognize and disrupt compact chromatin. In this review, we summarize these recent discoveries and explore their broader implications.</div></div>","PeriodicalId":10887,"journal":{"name":"Current opinion in structural biology","volume":"92 ","pages":"Article 103024"},"PeriodicalIF":6.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Predicting the structure-altering mechanisms of disease variants
IF 6.1 2区 生物学
Current opinion in structural biology Pub Date : 2025-02-27 DOI: 10.1016/j.sbi.2025.102994
Matteo Arnaudi , Mattia Utichi , Matteo Tiberti , Elena Papaleo
{"title":"Predicting the structure-altering mechanisms of disease variants","authors":"Matteo Arnaudi ,&nbsp;Mattia Utichi ,&nbsp;Matteo Tiberti ,&nbsp;Elena Papaleo","doi":"10.1016/j.sbi.2025.102994","DOIUrl":"10.1016/j.sbi.2025.102994","url":null,"abstract":"<div><div>Missense variants can affect the severity of disease, choice of treatment, and treatment outcomes. While the number of known variants has been increasing at a rapid pace, available evidence of their clinical effect has been lagging behind, constituting a challenge for clinicians and researchers. Multiplexed assays of variant effects (MAVEs) are important to close the gap; nonetheless, computational predictions of pathogenicity are still often the only available data for scoring variants. Such methods are not designed to provide a mechanistic explanation for the effect of amino acid substitutions. To this purpose, we propose structure-based frameworks as ensemble methodologies, with each method tailored to predict a different aspect among those exerted by amino acid substitutions to link predicted pathogenicity to mechanistic indicators. We review available frameworks, as well as advancements in underlying structure-based methods that predict variant effects on several protein features, such as protein stability, biomolecular interactions, allostery, post-translational modifications, and more.</div></div>","PeriodicalId":10887,"journal":{"name":"Current opinion in structural biology","volume":"91 ","pages":"Article 102994"},"PeriodicalIF":6.1,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The “three body solution”: Structural insights into molecular glues
IF 6.1 2区 生物学
Current opinion in structural biology Pub Date : 2025-02-26 DOI: 10.1016/j.sbi.2025.103007
Aidan C.A. Tomlinson , John E. Knox , Luc Brunsveld , Christian Ottmann , Jason K. Yano
{"title":"The “three body solution”: Structural insights into molecular glues","authors":"Aidan C.A. Tomlinson ,&nbsp;John E. Knox ,&nbsp;Luc Brunsveld ,&nbsp;Christian Ottmann ,&nbsp;Jason K. Yano","doi":"10.1016/j.sbi.2025.103007","DOIUrl":"10.1016/j.sbi.2025.103007","url":null,"abstract":"<div><div>Molecular glues are small molecules that nucleate novel or stabilize natural, protein–protein interactions resulting in a ternary complex. Their success in targeting difficult to drug proteins of interest has led to ever-increasing interest in their use as therapeutics and research tools. While molecular glues and their targets vary in structure, inspection of diverse ternary complexes reveals commonalities. Whether of high or low molecular weight, molecular glues are often rigid and form direct hydrophobic interactions with their target protein. There is growing evidence that these hotspots can accommodate multiple ternary complex binding modes and enable targeting of traditionally undruggable targets. Advances in screening from the molecular glue degrader literature and insights in structure-based drug design, especially from the non-degrading tri-complex work, are likely intersectional.</div></div>","PeriodicalId":10887,"journal":{"name":"Current opinion in structural biology","volume":"91 ","pages":"Article 103007"},"PeriodicalIF":6.1,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recent advances in AI-driven protein-ligand interaction predictions
IF 6.1 2区 生物学
Current opinion in structural biology Pub Date : 2025-02-24 DOI: 10.1016/j.sbi.2025.103020
Jaemin Sim , Dongwoo Kim , Bomin Kim , Jieun Choi , Juyong Lee
{"title":"Recent advances in AI-driven protein-ligand interaction predictions","authors":"Jaemin Sim ,&nbsp;Dongwoo Kim ,&nbsp;Bomin Kim ,&nbsp;Jieun Choi ,&nbsp;Juyong Lee","doi":"10.1016/j.sbi.2025.103020","DOIUrl":"10.1016/j.sbi.2025.103020","url":null,"abstract":"<div><div>Structure-based drug discovery is a fundamental approach in modern drug development, leveraging computational models to predict protein-ligand interactions. AI-driven methodologies are significantly improving key aspects of the field, including ligand binding site prediction, protein-ligand binding pose estimation, scoring function development, and virtual screening. In this review, we summarize the recent AI-driven advances in various protein-ligand interaction prediction tasks. Traditional docking methods based on empirical scoring functions often lack accuracy, whereas AI models, including graph neural networks, mixture density networks, transformers, and diffusion models, have enhanced predictive performance. Ligand binding site prediction has been refined using geometric deep learning and sequence-based embeddings, aiding in the identification of potential druggable target sites. Binding pose prediction has evolved with sampling-based and regression-based models, as well as protein-ligand co-generation frameworks. AI-powered scoring functions now integrate physical constraints and deep learning techniques to improve binding affinity estimation, leading to more robust virtual screening strategies. Despite these advances, generalization across diverse protein-ligand pairs remains a challenge. As AI technologies continue to evolve, they are expected to revolutionize molecular docking and affinity prediction, increasing both the accuracy and efficiency of structure-based drug discovery.</div></div>","PeriodicalId":10887,"journal":{"name":"Current opinion in structural biology","volume":"92 ","pages":"Article 103020"},"PeriodicalIF":6.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Leveraging protein structural information to improve variant effect prediction 利用蛋白质结构信息改进变异效应预测
IF 6.1 2区 生物学
Current opinion in structural biology Pub Date : 2025-02-22 DOI: 10.1016/j.sbi.2025.103023
Lukas Gerasimavicius , Sarah A. Teichmann , Joseph A. Marsh
{"title":"Leveraging protein structural information to improve variant effect prediction","authors":"Lukas Gerasimavicius ,&nbsp;Sarah A. Teichmann ,&nbsp;Joseph A. Marsh","doi":"10.1016/j.sbi.2025.103023","DOIUrl":"10.1016/j.sbi.2025.103023","url":null,"abstract":"<div><div>Despite massive sequencing efforts, understanding the difference between human pathogenic and benign variants remains a challenge. Computational variant effect predictors (VEPs) have emerged as essential tools for assessing the impact of genetic variants, although their performance varies. Initially, sequence-based methods dominated the field, but recent advances, particularly in protein structure prediction technologies like AlphaFold, have led to an increased utilization of structural information by VEPs aimed at scoring human missense variants. This review highlights the progress in integrating structural information into VEPs, showcasing novel models such as AlphaMissense, PrimateAI-3D, and CPT-1 that demonstrate improved variant evaluation. Structural data offers more interpretability, especially for non-loss-of-function variants, and provides insights into complex variant interactions <em>in vivo</em>. As the field advances, utilizing biomolecular complex structures will be pivotal for future VEP development, with recent breakthroughs in protein-ligand and protein-nucleic acid complex prediction offering new avenues.</div></div>","PeriodicalId":10887,"journal":{"name":"Current opinion in structural biology","volume":"92 ","pages":"Article 103023"},"PeriodicalIF":6.1,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143471354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamics-based drug discovery by time-resolved cryo-EM
IF 6.1 2区 生物学
Current opinion in structural biology Pub Date : 2025-02-21 DOI: 10.1016/j.sbi.2025.103001
Youdong Mao
{"title":"Dynamics-based drug discovery by time-resolved cryo-EM","authors":"Youdong Mao","doi":"10.1016/j.sbi.2025.103001","DOIUrl":"10.1016/j.sbi.2025.103001","url":null,"abstract":"<div><div>Rational structure-based drug design (SBDD) depends on high-resolution structural models of target macromolecules or their complexes. However, the lack of atomic-level functional molecular dynamics hinders the applications of SBDD and limits their effective translation into clinically successful therapeutics. Time-resolved cryo-electron microscopy (cryo-EM) has emerged as a powerful tool in structural biology, capable of capturing high-resolution snapshots of biomolecular machines in action. Unlike molecular dynamics (MD) simulations, time-resolved cryo-EM can visualize rare intermediate states across a broader range of timescales, providing invaluable insights into drug-binding kinetics, dynamic protein-ligand interactions, and allosteric regulation. Integration of time-resolved cryo-EM with machine learning (ML) and artificial intelligence (AI) expands SBDD into a dynamics-based approach, allowing for more accurate pharmacological modeling of challenging drug targets that are beyond the reach of MD simulations. Time-resolved cryo-EM can help researchers to identify novel druggable conformations, overcome drug resistance, and reduce the time and cost of clinical translations. Despite current challenges, the future development of time-resolved cryo-EM with AI and <em>in situ</em> imaging strategy, such as cryo-electron tomography, holds the potential to revolutionize drug discovery by revealing <em>in vivo</em> molecular dynamics of drug actions at an unprecedented spatiotemporal scale.</div></div>","PeriodicalId":10887,"journal":{"name":"Current opinion in structural biology","volume":"91 ","pages":"Article 103001"},"PeriodicalIF":6.1,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143455034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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