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Genetic evidence for absence of transposition functions from the internal part of Tn981 a relative of Tn9

✍ Scribed by Reif, H. J.


Publisher
Springer
Year
1980
Tongue
English
Weight
964 KB
Volume
177
Category
Article
ISSN
0026-8925

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✦ Synopsis


Inverse transposition of the DNA of pBR322 was found to be mediated by the small transposon Tn981 a relative of Tn9 flanked by direct repeats of IS1. Since the resulting structure IS1::pBR322::IS1 (Tn983) is transposed in a second step in the absence of Tn981, it is concluded that all the functions necessary for transposition of IS1 flanked transposons are coded for by IS1 itself or the E. coli chromosome, respectively.