Nucleotide dependency analysis of genomic language models detects functional elements

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Titel: Nucleotide dependency analysis of genomic language models detects functional elements
Autoren: Tomaz da Silva, Pedro, Karollus, Alexander, Hingerl, Johannes, Galindez, Gihanna Sta Teresa, Wagner, Nils, Hernandez-Alias, Xavier, Incarnato, Danny, Gagneur, Julien
Quelle: Nature Genetics. 57(10):2589-2602
Verlagsinformationen: Nature Publishing Group, 2025.
Publikationsjahr: 2025
Schlagwörter: Genetic, Models, Humans, Nucleic Acid Conformation, Genome/genetics, RNA/genetics, Nucleotides/genetics, Genomics/methods
Beschreibung: Deciphering how nucleotides in genomes encode regulatory instructions and molecular machines is a long-standing goal. Genomic language models (gLMs) implicitly capture functional elements and their organization from genomic sequences alone by modeling probabilities of each nucleotide given its sequence context. However, discovering functional genomic elements from gLMs has been challenging due to the lack of interpretable methods. Here we introduce nucleotide dependencies, which quantify how nucleotide substitutions at one genomic position affect the probabilities of nucleotides at other positions. We demonstrate that nucleotide dependencies are more effective at indicating the deleteriousness of genetic variants than alignment-based conservation and gLM reconstruction. Dependency analysis accurately detects regulatory motifs and highlights bases in contact within RNAs, including pseudoknots and tertiary structure contacts, revealing new, experimentally validated RNA structures. Finally, we leverage dependency maps to reveal critical limitations of several gLM architectures and training strategies. Altogether, nucleotide dependency analysis opens a new avenue for discovering and studying functional elements and their interactions in genomes.
Publikationsart: Article
Sprache: English
ISSN: 1061-4036
DOI: 10.1038/s41588-025-02347-3
Zugangs-URL: https://research.rug.nl/en/publications/3d5add9d-35f2-4c78-a3dc-7f9d53852abb
https://hdl.handle.net/11370/3d5add9d-35f2-4c78-a3dc-7f9d53852abb
Rights: CC BY
Dokumentencode: edsair.dris...01423..007b4be2ec1068d0860634f57a886354
Datenbank: OpenAIRE
Beschreibung
Abstract:Deciphering how nucleotides in genomes encode regulatory instructions and molecular machines is a long-standing goal. Genomic language models (gLMs) implicitly capture functional elements and their organization from genomic sequences alone by modeling probabilities of each nucleotide given its sequence context. However, discovering functional genomic elements from gLMs has been challenging due to the lack of interpretable methods. Here we introduce nucleotide dependencies, which quantify how nucleotide substitutions at one genomic position affect the probabilities of nucleotides at other positions. We demonstrate that nucleotide dependencies are more effective at indicating the deleteriousness of genetic variants than alignment-based conservation and gLM reconstruction. Dependency analysis accurately detects regulatory motifs and highlights bases in contact within RNAs, including pseudoknots and tertiary structure contacts, revealing new, experimentally validated RNA structures. Finally, we leverage dependency maps to reveal critical limitations of several gLM architectures and training strategies. Altogether, nucleotide dependency analysis opens a new avenue for discovering and studying functional elements and their interactions in genomes.
ISSN:10614036
DOI:10.1038/s41588-025-02347-3