Publication Date:
2011-10-18
Description:
Heterochromatin 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.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3391703/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3391703/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zaratiegui, Mikel -- Castel, Stephane E -- Irvine, Danielle V -- Kloc, Anna -- Ren, Jie -- Li, Fei -- de Castro, Elisa -- Marin, Laura -- Chang, An-Yun -- Goto, Derek -- Cande, W Zacheus -- Antequera, Francisco -- Arcangioli, Benoit -- Martienssen, Robert A -- R01 GM076396/GM/NIGMS NIH HHS/ -- R01 GM076396-04/GM/NIGMS NIH HHS/ -- England -- Nature. 2011 Oct 16;479(7371):135-8. doi: 10.1038/nature10501.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22002604" target="_blank"〉PubMed〈/a〉
Keywords:
Centromere/genetics/metabolism
;
Chromosomal Proteins, Non-Histone/genetics/metabolism
;
DNA Damage
;
DNA Replication/*physiology
;
DNA-Directed DNA Polymerase/metabolism
;
*Gene Silencing
;
Heterochromatin/*genetics/*metabolism
;
Histones/metabolism
;
Homologous Recombination
;
Models, Genetic
;
Molecular Sequence Data
;
*RNA Interference
;
RNA Polymerase II/*metabolism
;
RNA, Small Interfering/genetics/metabolism
;
Replication Origin
;
S Phase
;
Schizosaccharomyces/*genetics
;
Schizosaccharomyces pombe Proteins/genetics/metabolism
;
Transcription, Genetic
Print ISSN:
0028-0836
Electronic ISSN:
1476-4687
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
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