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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/51425
Título

RNAi promotes heterochromatic silencing through replication-coupled release of RNA Pol II

AutorZaratiegui, Mikel; Castro Álvarez, Elisa de; Marín, Laura; Antequera, Francisco
Fecha de publicación2011
EditorNature Publishing Group
CitaciónNature 479: 135-138 (2011)
ResumenHeterochromatin comprises tightly compacted repetitive regions of eukaryotic chromosomes. The inheritance of heterochromatin through mitosis requires RNA interference (RNAi), which guides histone modification during the DNA replication phase of the cell cycle. Here we show that the alternating arrangement of origins of replication and non-coding RNA in pericentromeric heterochromatin results in competition between transcription and replication in Schizosaccharomyces pombe. Co-transcriptional RNAi releases RNA polymerase II (Pol II), allowing completion of DNA replication by the leading strand DNA polymerase, and associated histone modifying enzymes that spread heterochromatin with the replication fork. In the absence of RNAi, stalled forks are repaired by homologous recombination without histone modification. © 2011 Macmillan Publishers Limited. All rights reserved.
URIhttp://hdl.handle.net/10261/51425
DOI10.1038/nature10501
Identificadoresdoi: 10.1038/nature10501
issn: 0028-0836
e-issn: 1476-4687
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