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Curr Genet. 1995 Oct;28(5):437-40.

Isolation of a Chlamydomonas reinhardtii telomere by functional complementation in yeast.

Author information

1
Biochemistry Department, Oxford University, UK.

Abstract

We attempted to determine whether Chlamydomonas reinhardtii telomeres, which do not form G-quartet structures readily in vitro, are able to nucleate telomere addition in Saccharomyces cerevisiae. Restricted C. reinhardtii genomic DNA was ligated to a linear S. cerevisiae vector lacking a telomere. A C. reinhardtii telomere ligated to this unprotected end allowed vector replication as a linear DNA molecule in S. cerevisiae. DNA sequencing revealed common [T4AG3]n and variant T6AG3 and T5AG3 C. reinhardtii telomere repeats capped by S. cerevisiae telomere repeat units. The recognition of a C. reinhardtii telomere by the telomere maintenance machinery of S. cerevisiae is consistent with a common theme for telomere structure in organisms with divergent telomere repeats.

PMID:
8575016
[Indexed for MEDLINE]

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