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Mol Cell. 2001 Jul;8(1):189-99.

Localization of yeast telomeres to the nuclear periphery is separable from transcriptional repression and telomere stability functions.

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Department of Molecular Biology, Princeton University, Princeton, NJ 08544, USA.


The left telomere of Saccharomyces chromosome VII was often localized near the nuclear periphery, even in cells lacking the silencing proteins Sir3 or Hdf1. This association was lost in late mitotic cells and when transcription was induced through the telomeric tract. Although in silencing competent cells there was no correlation between the fraction of cells in which a telomeric gene was repressed and the fraction of cells in which it was localized to the periphery, no condition was found where the telomere was both silenced and away from the periphery. We conclude that localization of a telomere to the nuclear periphery is not sufficient for transcriptional repression nor does it affect the stability function of yeast telomeres.

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