{"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\/de\/2024\/06\/university-of-toronto-researchers-build-peptide-prediction-model-that-beats-alphafold-2\/","title":{"rendered":"Forscher der Universit\u00e4t Toronto entwickeln Peptidvorhersagemodell, das AlphaFold 2 \u00fcbertrifft"},"content":{"rendered":"<p><b>Wissenschaftler am Donelly Centre der Universit\u00e4t Toronto haben ein innovatives KI-Modell namens PepFlow entwickelt, das die verschiedenen Formen, die Peptide annehmen, mit bisher unerreichter Genauigkeit vorhersagen kann.\u00a0<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Peptide sind kleine Molek\u00fcle, die aus Aminos\u00e4uren, den Bausteinen der Proteine, bestehen.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Peptide \u00e4hneln zwar den Proteinen, sind aber viel kleiner und flexibler, so dass sie sich in eine Vielzahl von Formen falten k\u00f6nnen.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Die spezifische Form eines Peptids ist entscheidend, denn sie bestimmt, wie es mit anderen Molek\u00fclen im K\u00f6rper interagiert, was wiederum seine biologische Funktion bestimmt.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Die Vorhersage der Strukturen von Proteinen und Peptiden ist seit langem eine Herausforderung in der Biologie. Aufgrund der komplexen mathematischen Zusammenh\u00e4nge ist dies ein hervorragendes Problem f\u00fcr maschinelles Lernen.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In den letzten Jahren haben KI-Modelle wie <\/span><a href=\"https:\/\/dailyai.com\/de\/2024\/05\/alphafold-3-deepmind-evolves-its-ai-protein-folding-project\/\"><span style=\"font-weight: 400;\">AlphaFold 2 und 3<\/span><\/a><span style=\"font-weight: 400;\">die von Googles DeepMind entwickelt wurden, haben die Vorhersage von Proteinstrukturen revolutioniert.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">AlphaFold2 nutzt Deep Learning, um die wahrscheinlichste 3D-Struktur eines Proteins auf der Grundlage seiner Aminos\u00e4uresequenz vorherzusagen. Aber w<\/span><span style=\"font-weight: 400;\">\u00e4hrend AlphaFold2 f\u00fcr Proteine unglaublich erfolgreich war, st\u00f6\u00dft es bei hochflexiblen Molek\u00fclen wie Peptiden an seine Grenzen.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\"Wir waren bisher nicht in der Lage, die gesamte Bandbreite der Konformationen von Peptiden zu modellieren\". <\/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;\">sagte Osama Abdin<\/span><\/a><span style=\"font-weight: 400;\">so der Erstautor der Studie.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Pepflow, dokumentiert in einem <a href=\"https:\/\/www.nature.com\/articles\/s42256-024-00860-4\" target=\"_blank\" rel=\"noopener\">Studie ver\u00f6ffentlicht<\/a> in Nature Machine Intelligence, \"nutzt Deep-Learning, um die pr\u00e4zisen und genauen Konformationen eines Peptids innerhalb von Minuten zu erfassen.\"<\/span><\/p>\n<p><span style=\"font-weight: 400;\">PepFlow verwendet KI-Modelle, die von <span class=\"noTranslate\" data-no-translation=\"\">Boltzmann generators.<\/span> Diese Modelle vermitteln die grundlegenden physikalischen Prinzipien, die bestimmen, wie die chemische Struktur eines Peptids sein Spektrum an m\u00f6glichen Formen bestimmt.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Dadurch kann PepFlow die Strukturen von Peptiden mit ungew\u00f6hnlichen Merkmalen, wie z. B. zirkul\u00e4re Peptide, die durch Makrozyklisierung entstehen, genau vorhersagen. Makrozyklische Peptide sind aufgrund ihrer einzigartigen Bindungseigenschaften f\u00fcr die Arzneimittelentwicklung besonders interessant.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Was PepFlow von Modellen wie AlphaFold2 unterscheidet, ist seine F\u00e4higkeit, nicht nur eine Struktur, sondern die gesamte Energielandschaft\" eines Peptids vorherzusagen.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Die Energielandschaft stellt alle m\u00f6glichen Formen dar, die ein Peptid annehmen kann, und wie es zwischen diesen verschiedenen Konformationen wechselt.<\/span><\/p>\n<p><span style=\"font-weight: 400;\"> Das Erfassen dieser strukturellen Komplexit\u00e4t ist der Schl\u00fcssel zu u<\/span><span style=\"font-weight: 400;\">\u00fcr das Verst\u00e4ndnis der Funktion von Peptiden in verschiedenen biologischen Zusammenh\u00e4ngen.<\/span><\/p>\n<blockquote class=\"twitter-tweet\">\n<p dir=\"ltr\" lang=\"en\">Forscher bei <a href=\"https:\/\/twitter.com\/UofT?ref_src=twsrc%5Etfw\">@UofT<\/a> haben eine <a href=\"https:\/\/twitter.com\/hashtag\/DeepLearning?src=hash&amp;ref_src=twsrc%5Etfw\">#DeepLearning<\/a> Modell, genannt PepFlow, das alle m\u00f6glichen Formen von Peptiden vorhersagen kann.<\/p>\n<p>PepFlow kann durch das Design von Peptiden, die als Bindemittel wirken, Informationen f\u00fcr die Arzneimittelentwicklung liefern. <a href=\"https:\/\/twitter.com\/hashtag\/DrugDiscovery?src=hash&amp;ref_src=twsrc%5Etfw\">#DrugDiscovery<\/a><\/p>\n<p>Mehr erfahren \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>- Donnelly Centre (@DonnellyCentre) <a href=\"https:\/\/twitter.com\/DonnellyCentre\/status\/1806328554348527953?ref_src=twsrc%5Etfw\">27. Juni 2024<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<h2>Bedeutung<\/h2>\n<p><span style=\"font-weight: 400;\">Die F\u00e4higkeit, hochpr\u00e4zise Peptidstrukturen vorherzusagen, hat gro\u00dfe Auswirkungen auf die Entwicklung von Therapeutika auf Peptidbasis.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\"Peptide standen im Mittelpunkt des PepFlow-Modells, weil sie sehr wichtige biologische Molek\u00fcle sind, die von Natur aus sehr dynamisch sind, so dass wir ihre verschiedenen Konformationen modellieren m\u00fcssen, um ihre Funktion zu verstehen\", erkl\u00e4rte <span class=\"noTranslate\" data-no-translation=\"\">Philip M. Kim<\/span>, der Leiter der Studie.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\"Sie sind auch als Therapeutika wichtig, wie die GLP1-Analoga wie Ozempic zeigen, die zur Behandlung von Diabetes und Fettleibigkeit eingesetzt werden.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Peptidarzneimittel haben mehrere Vorteile gegen\u00fcber herk\u00f6mmlichen niedermolekularen Arzneimitteln und gr\u00f6\u00dferen proteinbasierten Therapeutika. Sie sind spezifischer in ihrer Wirkung, haben eine geringere Toxizit\u00e4t als niedermolekulare Medikamente und sind billiger und einfacher herzustellen als gr\u00f6\u00dfere Proteinmedikamente.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">PepFlow k\u00f6nnte die Entdeckung und Entwicklung neuer Medikamente auf Peptidbasis beschleunigen, indem es das Design von Peptiden mit therapeutischen Eigenschaften erm\u00f6glicht.<\/span><\/p>\n<p>\"Es hat zweieinhalb Jahre gedauert, PepFlow zu entwickeln und einen Monat, um es zu trainieren, aber es hat sich gelohnt, die n\u00e4chste Grenze zu \u00fcberschreiten und \u00fcber Modelle hinauszugehen, die nur eine Struktur eines Peptids vorhersagen\", schloss Abdin.<\/p>\n<p>Dies folgt auf die Ver\u00f6ffentlichung von\u00a0<a href=\"https:\/\/dailyai.com\/de\/2024\/06\/evolutionaryscales-esm3-a-generative-model-for-biology\/\">EvolutionaryScale ESM3 diese Woche<\/a>ein generatives Grenzmodell f\u00fcr die Biologie, das sich ebenfalls auf Proteine konzentriert.<\/p>","protected":false},"excerpt":{"rendered":"<p>Wissenschaftler am Donelly Centre der Universit\u00e4t Toronto haben ein innovatives KI-Modell namens PepFlow entwickelt, das die verschiedenen Formen, die Peptide annehmen, mit bisher unerreichter Genauigkeit vorhersagen kann.  Peptide sind kleine Molek\u00fcle, die aus Aminos\u00e4uren bestehen, den Bausteinen von Proteinen.  Peptide \u00e4hneln zwar den Proteinen, sind aber viel kleiner und flexibler, so dass sie sich in eine Vielzahl von Formen falten k\u00f6nnen.  Die spezifische Form eines Peptids ist entscheidend, denn sie bestimmt, wie es mit anderen Molek\u00fclen im K\u00f6rper interagiert, was wiederum seine biologische Funktion bestimmt. Die Vorhersage der Strukturen von Proteinen und Peptiden ist seit langem ein<\/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\/de\/2024\/06\/university-of-toronto-researchers-build-peptide-prediction-model-that-beats-alphafold-2\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\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\/de\/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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