doi: 10.1016/0147-619x(91)90028-u.
A sequence at the inside end of IS50 down regulates transposition
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- PMID: 1650007
- DOI: 10.1016/0147-619x(91)90028-u
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A sequence at the inside end of IS50 down regulates transposition
Plasmid.
1991 Mar.
Abstract
Deletion analysis has shown that the segment at the IS50 inside (I) end that is needed for efficient transposition is approximately 19 bp long. Dam methylation at two 5' GATC sequences within this segment decreases I-end transposition activity. A third 5' GATC sequence is present at bp 21-24 of the I end. The comparisons presented here show that extension of the I end from 19 to 24 bp decreases its transposition activity in dam cells 5- to 50-fold, depending on the overall transposon structure.
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