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Genetics. 1997 Apr;145(4):911-22.

Increased length of long terminal repeats inhibits Ty1 transposition and leads to the formation of tandem multimers.

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  • 1Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.

Abstract

The Ty1 retrotransposon of Saccharomyces cerevisiae is bounded by long-terminal repeats (LTRs). We have constructed a variety of Ty1 elements in which the LTR length has been increased from the normal length of 334 bp to > 2 kb. Although small insertions in the LTR have minimal effects on transposition frequency, larger insertions dramatically reduce it. Nevertheless, elements with long LTRs are incorporated into the genome at a low frequency. Most of these rare insertion events represent Ty1 tandem (head to tail) multimers.

PMID:
9093846
[PubMed - indexed for MEDLINE]
PMCID:
PMC1207896
Free PMC Article
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