{"id":49200,"date":"2025-09-01T14:57:37","date_gmt":"2025-09-01T12:57:37","guid":{"rendered":"https:\/\/www.uni.lu\/en\/?post_type=news&#038;p=49200"},"modified":"2025-09-02T15:39:31","modified_gmt":"2025-09-02T13:39:31","slug":"ai-model-unlocks-simulations-of-large-biomolecules-with-quantum-accuracy","status":"publish","type":"news","link":"https:\/\/www.uni.lu\/en\/news\/ai-model-unlocks-simulations-of-large-biomolecules-with-quantum-accuracy\/","title":{"rendered":"AI model unlocks simulations of large biomolecules with quantum accuracy"},"content":{"rendered":"\n<section class=\"wp-block-unilux-blocks-free-section section\"><div class=\"container xl:max-w-screen-xl\">\n<p>An international team of researchers from the 糖心Vlog, Technische Universit\u00e4t Berlin (TU Berlin), the Berlin Institute for the Foundations of Learning and Data (BIFOLD), and Google DeepMind has developed a new machine learning model capable of simulating a wide variety of molecular systems \u2013 for example, large and complex biological molecules \u2013 with quantum-mechanical accuracy.<\/p>\n\n\n\n<p>The new method, called SO3LR, combines the latest developments in neural network design with physical laws and was trained on a specially curated dataset of four million different molecular structures. This enables the model to be applied not only to large biomolecules like proteins, sugars, or cell membranes, but also to a broad spectrum of other molecules without the need for retraining. This universal applicability of SO3LR paves the way for accelerated drug discovery and a deeper understanding of molecular biology.<\/p>\n\n\n\n<p>An interdisciplinary and international endeavour, the project was conceived by Uni.lu doctoral candidate Adil Kabylda and his PhD supervisor Prof. Alexandre Tkatchenko. As project lead, Adil developed and trained the model, then designed, performed, and analysed the simulations. This work, supported by an FNR AFR Individual PhD Fellowship, constitutes the final chapter of his PhD thesis, which is dedicated to atomistic-level (bio)molecular modelling.<\/p>\n\n\n\n<p>Findings are now published in the prestigious Journal of the American Chemical Society (JACS):<\/p>\n\n\n\n<ul class=\"wp-block-unilux-blocks-button-list-v2\">\n<li class=\"wp-block-unilux-blocks-button-list-item-v2\"><a class=\"quick-link\" href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/jacs.5c09558\" target=\"_blank\" role=\"link\" rel=\"noopener\" tabindex=\"0\"><span class=\"quick-link__container\">\n<div class=\"wp-block-unilux-blocks-block-inserter quick-link__img\">\n<div class=\"icon--primary icon--secondary-2 icon--lg wp-block-unilux-blocks-icon-picker\">\n    <svg aria-hidden=\"true\" focusable=\"false\" class=\"icon icon-outline icon--research \"><use xlink:href=\"https:\/\/www.uni.lu\/wp-content\/themes\/unilux-theme\/assets\/images\/icons\/icons-outline.svg#icon--research\"><\/use><\/svg><\/div><\/div>\n\n\n\n<span class=\"quick-link__name wp-block-unilux-blocks-plain-text\">Read the article<\/span>\n\n<svg aria-hidden=\"true\" focusable=\"false\" class=\"icon icon-outline icon--external-link \"><use xlink:href=\"https:\/\/www.uni.lu\/wp-content\/themes\/unilux-theme\/assets\/images\/icons\/icons-outline.svg#icon--external-link\"><\/use><\/svg><\/span><\/a><\/li>\n<\/ul>\n\n\n<div class=\"wp-block-unilux-blocks-spacer is-spacer-size-sm\"><\/div>\n\n\n<p>Molecular dynamics (MD) simulations enable us to understand and predict the behavior of molecules. They allow for the description of molecular interactions over time and provide insights into their structure, dynamics, and functioning. The exact simulation of the interaction of large biomolecules could, for example, enable the development of new drugs without the need to first conduct time-consuming, material-intensive, and costly experiments.<\/p>\n\n\n\n<p>For decades, scientists have been facing a fundamental trade-off: Methods were either fast but only approximate and not transferable between different molecules, or highly accurate but computationally extraordinarily expensive. This trade-off restricted the scope of accurate simulations to small systems with a few hundred atoms. Large and complex biomolecules \u2013 e.g. proteins or sugars \u2013 can contain tens of thousands of atoms, limiting our ability to accurately model and understand fundamental dynamic processes like protein folding or cell assembly.<\/p>\n\n\n\n<h2 class=\"has-text-align-left wp-block-unilux-blocks-heading\"        id=\"scaling-ai-based-approach-to-large-biomedical-systems\"\n    >\nScaling AI-based approach to large biomedical systems <\/h2>\n\n\n\n<p>In recent years, AI-based models have started to bridge this gap between approximate (classical) methods and highly accurate (quantum mechanical) methods. Despite great advances in the field, a persistent challenge has been the scaling of AI-based approaches to large biomolecular systems of realistic size. Simply put, the atoms in a molecule not only interact with atoms that are nearby but also with atoms far away. The larger the molecule, the more important are the long-range effects. The lack of accurate treatment of quantum effects at long distances between atoms is what hindered this adaptation for large and complex biomolecules.<\/p>\n\n\n\n<h2 class=\"has-text-align-left wp-block-unilux-blocks-heading\"        id=\"a-hybrid-approach-to-overcome-a-heap-of-challenges\"\n    >\nA hybrid approach to overcome a heap of challenges <\/h2>\n\n\n\n<p>The scientists designed the new SO3LR model using a hybrid approach. It divides the complex task of calculating the quantum mechanical interactions between the atoms into two complementary components: A fast and highly accurate machine learning model, which learns the complex, quantum many-body interactions that occur at short and medium distances is combined with universal, physically-grounded equations, accurately describing the interactions between the atoms at long distances.<\/p>\n\n\n\n<section class=\"wp-block-unilux-blocks-quote-people\">\n    <div class=\"quote-people\" role=\"group\">\n        <figure class=\"quote-people__body\">\n            <blockquote class=\"quote-people__blockquote\">\n    <span class=\"quote-people__quote\">\u201f<\/span>\n    Reliable simulations at the biomolecular scale hinge on long-range effects, so SO3LR encodes them by design.\u201d\n<\/blockquote>\n<div class=\"wp-block-unilux-blocks-wrapper quote-people__visual\"><figure class=\"wp-block-dev4-reusable-blocks-image  object-fit--cover\">\n    \n<img decoding=\"async\" class=\"wp-block-image unilux-custom-image-block\"\n                alt=\"Portrait of Adil Kabylda, Doctoral Researcher\"\n            src=\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/9\/2025\/08\/22082407\/adil-kabylda.jpg\"\n                srcset=\"https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/9\/2025\/08\/22082407\/adil-kabylda-300x300.jpg 300w, https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/9\/2025\/08\/22082407\/adil-kabylda-150x150.jpg 150w, https:\/\/www.uni.lu\/wp-content\/uploads\/sites\/9\/2025\/08\/22082407\/adil-kabylda.jpg 400w\"\n                style=\"object-position: 50.00% 50.00%; font-family: &quot;object-fit: cover; object-position: 50.00% 50.00%;&quot;; aspect-ratio: 1\/1; object-fit: cover; width: 100%;\"\n        loading=\"lazy\"\n\/>    <\/figure><\/div>\n\n<div class=\"wp-block-unilux-blocks-wrapper quote-people__figcaption\">\n<p class=\"quote-people__author wp-block-unilux-blocks-plain-text\">Adil KABYLDA <\/p>\n\n\n<p class=\"quote-people__position wp-block-unilux-blocks-plain-text\">Doctoral researcher<\/p>\n\n<div class=\"wp-block-unilux-blocks-simple-cta\">\n    <a\n        href=\"https:\/\/www.uni.lu\/fstm-en\/people\/adil-kabylda\/\"\n        class=\"link-text link-text--icon quote-people__link\"\n        target=\"\"\n    >\n        <span class=\"link-text__body\">\n            <span class=\"link-text__name\">View profile<\/span>\n        <\/span>\n        <svg aria-hidden=\"true\" focusable=\"false\" class=\"icon icon-outline icon--arrow-right \"><use xlink:href=\"https:\/\/www.uni.lu\/wp-content\/themes\/unilux-theme\/assets\/images\/icons\/icons-outline.svg#icon--arrow-right\"><\/use><\/svg>    <\/a>\n<\/div>\n<\/div>\n        <\/figure>\n    <\/div>\n<\/section>\n\n\n<p>\u201cThis allows our model to focus its powerful learning capacity on capturing the complex quantum effects that traditional models are missing to date,\u201d adds Thorben Frank, postdoctoral researcher at TU Berlin and BIFOLD Institute.&nbsp;<\/p>\n\n\n\n<p>The second challenge which needed to be solved was the universal applicability of a single model to many different molecules. Therefore, the team created an extensive and diverse dataset of over 4 million carefully curated molecular structures, which has been a key factor for \u201cteaching\u201d SO3LR how to accurately describe the vast diversity of molecules that exist in nature, achieving a level of transferability beyond that of former methods.&nbsp;<\/p>\n\n\n\n<p>To demonstrate the capabilities of SO3LR, the research team performed a series of challenging simulations for all four major types of biomolecules that can be found in nature. For example, they performed simulations of large biomolecular systems in an explicit water environment, including the crambin protein and a complex glycoprotein. They further performed simulations for a lipid POPC bilayer, which serves as a model system for human cell membranes. \u201cThe crucial breakthrough with SO3LR lies in its universality. Instead of having to go through the lengthy and complex process of data generation and subsequent model training for every new molecule, we provide a single, ready-to-use foundation model. This saves researchers the time and compute-intensive preparation steps and allows them to directly test hypotheses with quantum-mechanical accuracy,\u201d explains Prof. Klaus-Robert M\u00fcller, Co-Director of BIFOLD.<\/p>\n\n\n\n<section class=\"wp-block-unilux-blocks-quote-people\">\n    <div class=\"quote-people\" role=\"group\">\n        <figure class=\"quote-people__body\">\n            <blockquote class=\"quote-people__blockquote\">\n    <span class=\"quote-people__quote\">\u201f<\/span>\n    By combining machine learning with physical principles, we are opening the door to modelling realistic biological processes with quantum accuracy, which has profound implications for understanding health and disease and designing the next generation of drugs.\u201d\n<\/blockquote><!-- People Item Automated: Quote People -->\n<div class=\"quote-people__visual\">\n    <figure class=\"wp-block-dev4-reusable-blocks-image object-fit--cover\">\n        <!-- Template Image Component: default -->\n<img decoding=\"async\" class=\"w-full\" width=\"\" height=\"\" rel=\"\" alt=\"Prof Alexandre TKATCHENKO\" src=\"https:\/\/www.uni.lu\/en\/person-image\/NTAwMDk1OTZfX0FsZXhhbmRyZSBUS0FUQ0hFTktP\" srcset=\"https:\/\/www.uni.lu\/en\/person-image\/NTAwMDk1OTZfX0FsZXhhbmRyZSBUS0FUQ0hFTktP--thumbnail 150w,https:\/\/www.uni.lu\/en\/person-image\/NTAwMDk1OTZfX0FsZXhhbmRyZSBUS0FUQ0hFTktP--medium 300w,https:\/\/www.uni.lu\/en\/person-image\/NTAwMDk1OTZfX0FsZXhhbmRyZSBUS0FUQ0hFTktP--medium_large 768w,https:\/\/www.uni.lu\/en\/person-image\/NTAwMDk1OTZfX0FsZXhhbmRyZSBUS0FUQ0hFTktP--large 1024w,https:\/\/www.uni.lu\/en\/person-image\/NTAwMDk1OTZfX0FsZXhhbmRyZSBUS0FUQ0hFTktP--1536x1536 1536w,https:\/\/www.uni.lu\/en\/person-image\/NTAwMDk1OTZfX0FsZXhhbmRyZSBUS0FUQ0hFTktP--2048x2048 2048w\" loading=\"lazy\" \/><!-- end Image Component -->\n    <\/figure>\n<\/div>\n<div class=\"quote-people__figcaption\">\n    <p class=\"quote-people__author\">Prof Alexandre TKATCHENKO<\/p>\n    <p class=\"quote-people__position\">Full professor in Theoretical Condensed Matter Physics<\/p>\n    <div class=\"wp-block-unilux-blocks-simple-cta wp-block-unilux-blocks-people-item-automated\">\n    <a\n        href=\"https:\/\/www.uni.lu\/en\/person\/NTAwMDk1OTZfX0FsZXhhbmRyZSBUS0FUQ0hFTktP\"\n        class=\"link-text link-text--icon quote-people__link\"\n        target=\"\"\n    >\n        <span class=\"link-text__body\">\n            <span class=\"link-text__name\">View profile<\/span>\n        <\/span>\n        <svg aria-hidden=\"true\" focusable=\"false\" class=\"icon icon-outline icon--arrow-right \"><use xlink:href=\"https:\/\/www.uni.lu\/wp-content\/themes\/unilux-theme\/assets\/images\/icons\/icons-outline.svg#icon--arrow-right\"><\/use><\/svg>    <\/a>\n<\/div>\n<\/div>\n<!-- end People Item Automated -->        <\/figure>\n    <\/div>\n<\/section><\/div><\/section>\n\n\n<section class=\"section section wp-block-unilux-blocks-quick-link-discover-section py-0\">\n    <div class=\"container xl:max-w-screen-xl\">\n        \n<h2 class=\"has-text-align-left wp-block-unilux-blocks-heading\"        id=\"read-also\"\n    >\nRead also&#8230;<\/h2>\n\n<ul class=\"wp-block-unilux-blocks-quick-link-discover quick-link-list\">\n<li class=\"wp-block-unilux-blocks-quick-link-discover-item\">\n    <a\n                    href=\"https:\/\/www.uni.lu\/research-en\/research-areas\/statistical-physics-machine-learning\/\"\n                    class=\"quick-link\"\n            target=\"\"\n    >\n            <span class=\"quick-link__container\">\n                <span class=\"quick-link__text\">\n                    Statistical Physics &amp; Machine Learning                <\/span>\n                <svg aria-hidden=\"true\" focusable=\"false\" class=\"icon icon-outline icon--arrow-right \"><use xlink:href=\"https:\/\/www.uni.lu\/wp-content\/themes\/unilux-theme\/assets\/images\/icons\/icons-outline.svg#icon--arrow-right\"><\/use><\/svg>            <\/span>\n    <\/a>\n<\/li>\n<\/ul>\n    <\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":341,"featured_media":49203,"template":"","format":"standard","meta":{"featured_image_focal_point":{"x":0.42,"y":0.47},"show_featured_caption":true,"ulux_newsletter_groups":"","uluxPostTitle":"","uluxPrePostTitle":"","_trash_the_other_posts":false,"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false},"news-category":[11],"news-topic":[26,28],"organisation":[32],"authorship":[341],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v22.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>AI model unlocks simulations of large biomolecules with quantum accuracy - 糖心Vlog<\/title>\n<meta name=\"description\" content=\"An international team of researchers from the 糖心Vlog, Technische Universit\u00e4t Berlin (TU Berlin), the Berlin Institute for the\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.uni.lu\/en\/news\/ai-model-unlocks-simulations-of-large-biomolecules-with-quantum-accuracy\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AI model unlocks simulations of large biomolecules with quantum accuracy\" \/>\n<meta property=\"og:description\" content=\"An international team of researchers from the 糖心Vlog, Technische 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