Distribution of transposons Tn5044 and Tn5070 with noncanonical mer operons in environmental bacterial populations

Distribution of transposons Tn5044 and Tn5070 with noncanonical mer operons in environmental... The distribution of noncanonical mercury resistance transposons, Tn5044 and Tn5070 , was examined. A characteristic feature of Tn5044 is temperature sensitivity of its mercury operon and the presence in the mer operon of the gene homologous to RNA polymerase ∑ subunit. Structural organization of mercury operon Tn5070 , containing minimum gene set (merRTPA), differs from mer operons of both Gram-negative and Gram-positive bacteria. None of more than two thousand environmental bacterial strains displaying mercury resistance and isolated from the samples selected from different geographical regions hybridized to Tn5044- and Tn5070-specific probes. A concept on the existence of cosmopolite, endemic, and rare transposons in environmental bacterial populations was formulated. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Distribution of transposons Tn5044 and Tn5070 with noncanonical mer operons in environmental bacterial populations

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2004 by MAIK “Nauka/Interperiodica”
Subject
Biomedicine; Human Genetics; Microbial Genetics and Genomics; Animal Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1007/s11177-005-0016-x
Publisher site
See Article on Publisher Site

Abstract

The distribution of noncanonical mercury resistance transposons, Tn5044 and Tn5070 , was examined. A characteristic feature of Tn5044 is temperature sensitivity of its mercury operon and the presence in the mer operon of the gene homologous to RNA polymerase ∑ subunit. Structural organization of mercury operon Tn5070 , containing minimum gene set (merRTPA), differs from mer operons of both Gram-negative and Gram-positive bacteria. None of more than two thousand environmental bacterial strains displaying mercury resistance and isolated from the samples selected from different geographical regions hybridized to Tn5044- and Tn5070-specific probes. A concept on the existence of cosmopolite, endemic, and rare transposons in environmental bacterial populations was formulated.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Feb 16, 2005

References

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