{"title":"R 环和 G 四链体在 DNA 修复、转录和基因组组织中的交织作用","authors":"Phillip Wulfridge, Kavitha Sarma","doi":"10.1038/s41556-024-01437-4","DOIUrl":null,"url":null,"abstract":"R-loops are three-stranded nucleic acid structures that are abundant and widespread across the genome and that have important physiological roles in many nuclear processes. Their accumulation is observed in cancers and neurodegenerative disorders. Recent studies have implicated a function for R-loops and G-quadruplex (G4) structures, which can form on the displaced single strand of R-loops, in three-dimensional genome organization in both physiological and pathological contexts. Here we discuss the interconnected functions of DNA:RNA hybrids and G4s within R-loops, their impact on DNA repair and gene regulatory networks, and their emerging roles in genome organization during development and disease. R-loops and G-quadruplexes are non-canonical nucleic acid structures with known roles in genome organization. Here, Wulfridge and Sarma highlight emerging roles in DNA repair and transcriptional and epigenetic gene regulation.","PeriodicalId":18977,"journal":{"name":"Nature Cell Biology","volume":null,"pages":null},"PeriodicalIF":17.3000,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Intertwining roles of R-loops and G-quadruplexes in DNA repair, transcription and genome organization\",\"authors\":\"Phillip Wulfridge, Kavitha Sarma\",\"doi\":\"10.1038/s41556-024-01437-4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"R-loops are three-stranded nucleic acid structures that are abundant and widespread across the genome and that have important physiological roles in many nuclear processes. Their accumulation is observed in cancers and neurodegenerative disorders. Recent studies have implicated a function for R-loops and G-quadruplex (G4) structures, which can form on the displaced single strand of R-loops, in three-dimensional genome organization in both physiological and pathological contexts. Here we discuss the interconnected functions of DNA:RNA hybrids and G4s within R-loops, their impact on DNA repair and gene regulatory networks, and their emerging roles in genome organization during development and disease. R-loops and G-quadruplexes are non-canonical nucleic acid structures with known roles in genome organization. Here, Wulfridge and Sarma highlight emerging roles in DNA repair and transcriptional and epigenetic gene regulation.\",\"PeriodicalId\":18977,\"journal\":{\"name\":\"Nature Cell Biology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":17.3000,\"publicationDate\":\"2024-06-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nature Cell Biology\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://www.nature.com/articles/s41556-024-01437-4\",\"RegionNum\":1,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CELL BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature Cell Biology","FirstCategoryId":"99","ListUrlMain":"https://www.nature.com/articles/s41556-024-01437-4","RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CELL BIOLOGY","Score":null,"Total":0}
引用次数: 0
摘要
R 环是一种三链核酸结构,在整个基因组中含量丰富,分布广泛,在许多核过程中具有重要的生理作用。在癌症和神经退行性疾病中都能观察到它们的积累。最近的研究表明,在生理和病理情况下,R-环和 G-四叠体(G4)结构在基因组的三维组织中发挥着作用,G-四叠体可在 R-环的移位单链上形成。在这里,我们将讨论 DNA:RNA 杂交体和 R 环内 G4 的相互关联功能、它们对 DNA 修复和基因调控网络的影响,以及它们在发育和疾病过程中基因组组织中的新作用。
Intertwining roles of R-loops and G-quadruplexes in DNA repair, transcription and genome organization
R-loops are three-stranded nucleic acid structures that are abundant and widespread across the genome and that have important physiological roles in many nuclear processes. Their accumulation is observed in cancers and neurodegenerative disorders. Recent studies have implicated a function for R-loops and G-quadruplex (G4) structures, which can form on the displaced single strand of R-loops, in three-dimensional genome organization in both physiological and pathological contexts. Here we discuss the interconnected functions of DNA:RNA hybrids and G4s within R-loops, their impact on DNA repair and gene regulatory networks, and their emerging roles in genome organization during development and disease. R-loops and G-quadruplexes are non-canonical nucleic acid structures with known roles in genome organization. Here, Wulfridge and Sarma highlight emerging roles in DNA repair and transcriptional and epigenetic gene regulation.
期刊介绍:
Nature Cell Biology, a prestigious journal, upholds a commitment to publishing papers of the highest quality across all areas of cell biology, with a particular focus on elucidating mechanisms underlying fundamental cell biological processes. The journal's broad scope encompasses various areas of interest, including but not limited to:
-Autophagy
-Cancer biology
-Cell adhesion and migration
-Cell cycle and growth
-Cell death
-Chromatin and epigenetics
-Cytoskeletal dynamics
-Developmental biology
-DNA replication and repair
-Mechanisms of human disease
-Mechanobiology
-Membrane traffic and dynamics
-Metabolism
-Nuclear organization and dynamics
-Organelle biology
-Proteolysis and quality control
-RNA biology
-Signal transduction
-Stem cell biology