{"id":13145,"date":"2024-06-28T10:17:24","date_gmt":"2024-06-28T10:17:24","guid":{"rendered":"https:\/\/dailyai.com\/?p=13145"},"modified":"2024-07-01T11:19:48","modified_gmt":"2024-07-01T11:19:48","slug":"university-of-toronto-researchers-build-peptide-prediction-model-that-beats-alphafold-2","status":"publish","type":"post","link":"https:\/\/dailyai.com\/it\/2024\/06\/university-of-toronto-researchers-build-peptide-prediction-model-that-beats-alphafold-2\/","title":{"rendered":"I ricercatori dell'Universit\u00e0 di Toronto hanno creato un modello di predizione dei peptidi che batte AlphaFold 2"},"content":{"rendered":"<p><b>Gli scienziati del Donelly Centre dell'Universit\u00e0 di Toronto hanno sviluppato un modello di intelligenza artificiale all'avanguardia, chiamato PepFlow, in grado di prevedere le diverse forme adottate dai peptidi con una precisione senza precedenti.\u00a0<\/b><\/p>\n<p><span style=\"font-weight: 400;\">I peptidi sono piccole molecole composte da aminoacidi, i mattoni delle proteine.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">I peptidi sono simili alle proteine, ma sono molto pi\u00f9 piccoli e flessibili, il che consente loro di ripiegarsi in una grande variet\u00e0 di forme.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">La forma specifica di un peptide \u00e8 fondamentale perch\u00e9 determina il modo in cui interagisce con altre molecole dell'organismo, che a sua volta determina la sua funzione biologica.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">La previsione delle strutture di proteine e peptidi \u00e8 una sfida di lunga data in biologia. A causa della complessa matematica coinvolta, \u00e8 un problema eccellente per l'apprendimento automatico.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Negli ultimi anni, modelli di IA come <\/span><a href=\"https:\/\/dailyai.com\/it\/2024\/05\/alphafold-3-deepmind-evolves-its-ai-protein-folding-project\/\"><span style=\"font-weight: 400;\">AlphaFold 2 e 3<\/span><\/a><span style=\"font-weight: 400;\">sviluppati da DeepMind di Google, hanno rivoluzionato la previsione della struttura delle proteine.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">AlphaFold2 utilizza il deep learning per prevedere la struttura 3D pi\u00f9 probabile di una proteina in base alla sua sequenza di amminoacidi. Ma w<\/span><span style=\"font-weight: 400;\">a AlphaFold2 ha avuto un successo incredibile per le proteine, ma ha dei limiti quando si tratta di molecole altamente flessibili come i peptidi.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\"Finora non siamo stati in grado di modellare l'intera gamma di conformazioni dei peptidi\". <\/span><a href=\"https:\/\/thedonnellycentre.utoronto.ca\/news\/u-t-researchers-develop-deep-learning-model-outperforms-google-ai-system-predict-peptide\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">ha detto Osama Abdin<\/span><\/a><span style=\"font-weight: 400;\">, primo autore dello studio.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pepflow, documentato in un <a href=\"https:\/\/www.nature.com\/articles\/s42256-024-00860-4\" target=\"_blank\" rel=\"noopener\">studio pubblicato<\/a> in Nature Machine Intelligence, \"sfrutta l'apprendimento profondo per catturare le conformazioni precise e accurate di un peptide in pochi minuti\".<\/span><\/p>\n<p><span style=\"font-weight: 400;\">PepFlow impiega modelli di intelligenza artificiale ispirati a <span class=\"noTranslate\" data-no-translation=\"\">Boltzmann generators.<\/span> Questi modelli apprendono i principi fisici fondamentali che regolano il modo in cui la struttura chimica di un peptide determina il suo spettro di forme possibili.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ci\u00f2 consente a PepFlow di prevedere con precisione le strutture di peptidi con caratteristiche insolite, come i peptidi circolari formati per macrociclizzazione. I peptidi macrociclici sono particolarmente interessanti per lo sviluppo di farmaci grazie alle loro propriet\u00e0 di legame uniche.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ci\u00f2 che distingue PepFlow da modelli come AlphaFold2 \u00e8 la sua capacit\u00e0 di prevedere non solo una struttura, ma l'intero \"paesaggio energetico\" di un peptide.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Il paesaggio energetico rappresenta tutte le possibili forme che un peptide pu\u00f2 assumere e il modo in cui passa tra queste diverse conformazioni.<\/span><\/p>\n<p><span style=\"font-weight: 400;\"> Catturare questa complessit\u00e0 strutturale \u00e8 fondamentale per u<\/span><span style=\"font-weight: 400;\">ndividuare il funzionamento dei peptidi in diversi contesti biologici.<\/span><\/p>\n<blockquote class=\"twitter-tweet\">\n<p dir=\"ltr\" lang=\"en\">I ricercatori di <a href=\"https:\/\/twitter.com\/UofT?ref_src=twsrc%5Etfw\">@UofT<\/a> hanno sviluppato un <a href=\"https:\/\/twitter.com\/hashtag\/DeepLearning?src=hash&amp;ref_src=twsrc%5Etfw\">#DeepLearning<\/a> modello, chiamato PepFlow, in grado di prevedere tutte le possibili forme dei peptidi.<\/p>\n<p>PepFlow pu\u00f2 informare lo sviluppo di farmaci attraverso la progettazione di peptidi che agiscono come leganti. <a href=\"https:\/\/twitter.com\/hashtag\/DrugDiscovery?src=hash&amp;ref_src=twsrc%5Etfw\">#DrugDiscovery<\/a><\/p>\n<p>Per saperne di pi\u00f9 \ud83d\udc49 <a href=\"https:\/\/t.co\/eAKOg5e7Cz\">https:\/\/t.co\/eAKOg5e7Cz<\/a> <a href=\"https:\/\/t.co\/mYP9YeiCOe\">pic.twitter.com\/mYP9YeiCOe<\/a><\/p>\n<p>- Centro Donnelly (@DonnellyCentre) <a href=\"https:\/\/twitter.com\/DonnellyCentre\/status\/1806328554348527953?ref_src=twsrc%5Etfw\">27 giugno 2024<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<h2>Significato<\/h2>\n<p><span style=\"font-weight: 400;\">La capacit\u00e0 di prevedere strutture peptidiche altamente accurate ha importanti implicazioni per lo sviluppo di terapie a base di peptidi.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\"I peptidi sono stati al centro del modello PepFlow perch\u00e9 sono molecole biologiche molto importanti e sono naturalmente molto dinamiche, quindi abbiamo bisogno di modellare le loro diverse conformazioni per capire la loro funzione\", ha spiegato <span class=\"noTranslate\" data-no-translation=\"\">Philip M. Kim<\/span>, ricercatore principale dello studio.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\"Sono importanti anche come terapie, come dimostrano gli analoghi del GLP1, come Ozempic, usati per trattare il diabete e l'obesit\u00e0\".<\/span><\/p>\n<p><span style=\"font-weight: 400;\">I farmaci peptidici presentano diversi vantaggi rispetto ai farmaci tradizionali a base di piccole molecole e ai terapici pi\u00f9 grandi a base di proteine. Sono pi\u00f9 specifici nelle loro azioni, hanno una tossicit\u00e0 inferiore rispetto ai farmaci a piccole molecole e sono pi\u00f9 economici e facili da produrre rispetto ai farmaci proteici pi\u00f9 grandi.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">PepFlow potrebbe accelerare la scoperta e lo sviluppo di nuovi farmaci a base di peptidi, consentendo la progettazione di peptidi con propriet\u00e0 terapeutiche.<\/span><\/p>\n<p>\"Ci sono voluti due anni e mezzo per sviluppare PepFlow e un mese per addestrarlo, ma \u00e8 valsa la pena di passare alla frontiera successiva, al di l\u00e0 dei modelli che prevedono solo una struttura di un peptide\", ha concluso Abdin.<\/p>\n<p>Questo segue il rilascio di\u00a0<a href=\"https:\/\/dailyai.com\/it\/2024\/06\/evolutionaryscales-esm3-a-generative-model-for-biology\/\">EvolutionaryScale ESM3 questa settimana<\/a>, un modello generativo di frontiera per la biologia, che si concentra anche sulle proteine.<\/p>","protected":false},"excerpt":{"rendered":"<p>Gli scienziati del Donelly Centre dell'Universit\u00e0 di Toronto hanno sviluppato un modello di intelligenza artificiale all'avanguardia, chiamato PepFlow, in grado di prevedere le diverse forme che i peptidi assumono con una precisione senza precedenti.  I peptidi sono piccole molecole composte da aminoacidi, i mattoni delle proteine.  Pur essendo simili alle proteine, i peptidi sono molto pi\u00f9 piccoli e flessibili, il che consente loro di ripiegarsi in un'enorme variet\u00e0 di forme.  La forma specifica di un peptide \u00e8 fondamentale perch\u00e9 determina il modo in cui interagisce con le altre molecole dell'organismo, che a sua volta determina la sua funzione biologica. La previsione della struttura delle proteine e dei peptidi \u00e8 stata a lungo un'impresa<\/p>","protected":false},"author":2,"featured_media":13152,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[88],"tags":[353,204,178],"class_list":["post-13145","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ethics","tag-biology","tag-healthcare","tag-medicine"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>University of Toronto researchers build peptide prediction model that beats AlphaFold 2 | DailyAI<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dailyai.com\/it\/2024\/06\/university-of-toronto-researchers-build-peptide-prediction-model-that-beats-alphafold-2\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"University of Toronto researchers build peptide prediction model that beats AlphaFold 2 | DailyAI\" \/>\n<meta property=\"og:description\" content=\"Scientists at the University of Toronto&#8217;s Donelly Centre have developed a cutting-edge AI model called PepFlow that can predict the diverse shapes that peptides adopt with unprecedented accuracy.\u00a0 Peptides are small molecules made up of amino acids, the building blocks of proteins.\u00a0 While peptides are similar to proteins, they\u2019re much smaller and more flexible, allowing them to fold into a huge variety of shapes.\u00a0 A peptide&#8217;s specific shape is crucial because it determines how it interacts with other molecules in the body, which in turn dictates its biological function. Predicting the structures of proteins and peptides has been a longstanding\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dailyai.com\/it\/2024\/06\/university-of-toronto-researchers-build-peptide-prediction-model-that-beats-alphafold-2\/\" \/>\n<meta property=\"og:site_name\" content=\"DailyAI\" \/>\n<meta property=\"article:published_time\" content=\"2024-06-28T10:17:24+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-07-01T11:19:48+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dailyai.com\/wp-content\/uploads\/2024\/06\/DALL\u00b7E-2024-06-28-11.28.34-Create-a-high-quality-smooth-landscape-image-focusing-on-peptides-in-a-futuristic-lab-environment.-The-image-should-display-clear-molecular-structure.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1792\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Sam Jeans\" \/>\n<meta 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