Transcription of insertion elements IS1 and IS2 in vitro
✍ Scribed by Besemer, Jürgen ;Molzberger, Christel
- Book ID
- 105045409
- Publisher
- Springer
- Year
- 1977
- Tongue
- English
- Weight
- 878 KB
- Volume
- 153
- Category
- Article
- ISSN
- 0026-8925
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Presence of insertion element IS1 within an operon leads to absence of expression of genes distal to its integration site. This strong polar effect is observed irrespective of the orientation of IS1. Here I report on a mutant of E. coli K12 which allows turn-on of genes located distally to IS1. This
Total DNAs from twelve natural isolates of Escherichia coli from animals and humans were examined by hybridization with a probe for IS1. Considerable variation in copy number was found. In the case of two strains isolated from the same individual, one strain contained no copies of IS1 and the other,