LINEing germ and embryonic stem cells' silencing of retrotransposons
- PMID: 24990961
- PMCID: PMC4083083
- DOI: 10.1101/gad.246462.114
LINEing germ and embryonic stem cells' silencing of retrotransposons
Abstract
Almost half of our genome is occupied by transposable elements. Although most of them are inactive, one type of non-long terminal repeat (LTR) retrotransposon, long interspersed nuclear element 1 (LINE1), is capable of retrotransposition. Two studies in this issue, Pezic and colleagues (pp. 1410-1428) and Castro-Diaz and colleagues (pp. 1397-1409), provide novel insight into the regulation of LINE1s in human embryonic stem cells and mouse germ cells and shed new light on the conservation of complex mechanisms to ensure silencing of transposable elements in mammals.
Keywords: DNA methylation; KAP1; LINE1; evolution; piRNA; transposon.
© 2014 Ishiuchi and Torres-Padilla; Published by Cold Spring Harbor Laboratory Press.
Comment on
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piRNA pathway targets active LINE1 elements to establish the repressive H3K9me3 mark in germ cells.Genes Dev. 2014 Jul 1;28(13):1410-28. doi: 10.1101/gad.240895.114. Epub 2014 Jun 17. Genes Dev. 2014. PMID: 24939875 Free PMC article.
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Evolutionally dynamic L1 regulation in embryonic stem cells.Genes Dev. 2014 Jul 1;28(13):1397-409. doi: 10.1101/gad.241661.114. Epub 2014 Jun 17. Genes Dev. 2014. PMID: 24939876 Free PMC article.
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