Artículo
Repeat RNAs associate with replication forks and post-replicative DNA
Autor/es | Gylling, Helene M.
González Aguilera, Cristina Smith, Martin A. Kaczorowski, Dominik C. Groth, Anja Lund, Anders H. |
Departamento | Universidad de Sevilla. Departamento de Biología Celular |
Fecha de publicación | 2020 |
Fecha de depósito | 2023-03-21 |
Publicado en |
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Resumen | Noncoding RNA has a proven ability to direct and regulate chromatin modifications by acting as scaffolds between DNA and histone-modifying complexes. However, it is unknown if ncRNA plays any role inDNAreplication and ... Noncoding RNA has a proven ability to direct and regulate chromatin modifications by acting as scaffolds between DNA and histone-modifying complexes. However, it is unknown if ncRNA plays any role inDNAreplication and epigenome maintenance, including histone eviction and reinstallment of histone modifications after genome duplication. Isolation of nascent chromatin has identified a large number of RNA-binding proteins in addition to unknown components of the replication and epigenetic maintenance machinery. Here, we isolated and characterized long and short RNAs associated with nascent chromatin at active replication forks and track RNA composition during chromatin maturation across the cell cycle. Shortly after fork passage, GA-rich-, alpha- and TElomeric Repeat-containing RNAs (TERRA) are associated with replicated DNA. These repeat containing RNAs arise from loci undergoing replication, suggesting an interaction in cis. Postreplication during chromatin maturation, and even after mitosis in G1, the repeats remain enriched on DNA. This suggests that specific types of repeat RNAs are transcribed shortly after DNA replication and stably associate with their loci of origin throughout the cell cycle. The presented method and data enable studies of RNA interactions with replication forks and post-replicative chromatin and provide insights into how repeat RNAs and their engagement with chromatin are regulated with respect to DNA replication and across the cell cycle. |
Agencias financiadoras | Novo Nordisk Foundation Danish Cancer Society. Denmark European Research Council (ERC) Danish Council for Independent Research. Denmark Lundbeck Foundation |
Identificador del proyecto | NNF18OC0030656
NNF17OC0028620 NNF14CC0001 R124-A7493 R204- A12532 ERC2011StG 281765 7016-00042B R198-2015-269 |
Cita | Gylling, H.M., González Aguilera, C., Smith, M.A., Kaczorowski, D.C., Groth, A. y Lund, A.H. (2020). Repeat RNAs associate with replication forks and post-replicative DNA. RNA, 26 (9), 1104-1117. https://doi.org/10.1261/rna.074757.120. |
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