Ty1 extrachromosomal circular copies in Saccharomyces cerevisiae

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The eukaryotic transposable element Ty1 is present in about 20-30 integrated copies per yeast aploid genome, variably localized in different strains. Here, we report the presence in yeast of circular extrachromosomal molecules homologous to Ty1, 6 kilobases in size (the same as integrated copies) present in about 1 circular copy/250-300 cells. This finding shows another analogy between eurkaryotic-transposable elements and the pro-viral integrative form of retroviruses. © 1983.




Ballario, P., Filetici, P., Junakovic, N., & Pedone, F. (1983). Ty1 extrachromosomal circular copies in Saccharomyces cerevisiae. FEBS Letters, 155(2), 225–229. https://doi.org/10.1016/0014-5793(82)80608-X

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