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Subcell Biochem. 2010;50:105-18. doi: 10.1007/978-90-481-3471-7_6.

Non-coding RNAs: new players in the field of eukaryotic DNA replication.

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Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK.


The machinery required for the replication of eukaryotic chromosomal DNA is made up of proteins whose function, structure and main interaction partners are evolutionarily conserved. Several new cases have been reported recently, however, in which non-coding RNAs play additional and specialised roles in the initiation of eukaryotic DNA replication in different classes of organisms. These non-coding RNAs include Y RNAs in vertebrate somatic cells, 26T RNA in somatic macronuclei of the ciliate Tetrahymena, and G-rich RNA in the Epstein-Barr DNA tumour virus and its human host cells. Here, I will give an overview of the experimental evidence in favour of roles for these non-coding RNAs in the regulation of eukaryotic DNA replication, and compare and contrast their biosynthesis and mechanisms of action.

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