| Genetic instability in Streptomyces niveus plasmid pSN2: in vivo formation of deletion derivatives. | |
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MedLine Citation:
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PMID: 2256784 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A plasmid designated pSN2 (molecular size 32.0 kb) was isolated from the wild type of Streptomyces niveus ATCC 19793. To permit phenotypic identification of pSN2 the 1.9 kb BclI fragment was replaced in vitro by the 1.1 kb BclI fragment of pIJ702 carrying the thiostrepton resistance (tsr) gene to form the plasmid pSN3. pSN3 transforms S. lividans to thiostrepton resistance at high frequency and is stably maintained. However, when used to transform S. niveus pSN3 was unstable and produced a 5.5 kb thiostrepton resistant deletion derivative pLG5. pLG5 is also stable and expresses thiostrepton resistance in S. lividans but on transformation of S. niveus was unstable and produced a further thiostrepton resistant derivative, pLG10, of 6.5 kb. pLG5 and pLG10 like pSN3 transform S. lividans at high frequency and produce pocks. DNA hybridizations with a probe derived from pLG5 confirm that pLG5 is derived from DNA sequences present on pSN2 and pSN3. |
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Authors:
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H A Hussain; J I Mitchell; D A Ritchie |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Archives of microbiology Volume: 154 ISSN: 0302-8933 ISO Abbreviation: Arch. Microbiol. Publication Date: 1990 |
Date Detail:
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Created Date: 1991-01-24 Completed Date: 1991-01-24 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0410427 Medline TA: Arch Microbiol Country: GERMANY |
Other Details:
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Languages: eng Pagination: 504-9 Citation Subset: IM |
Affiliation:
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Department of Genetics and Microbiology, Donnan Laboratories, University of Liverpool, UK. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Chromosome Deletion Cloning, Molecular DNA, Bacterial / analysis* Drug Resistance, Microbial Electrophoresis, Agar Gel Nucleic Acid Hybridization Phenotype Plasmids* Protoplasts Restriction Mapping Streptomyces / drug effects, genetics* Thiostrepton / pharmacology Transformation, Bacterial |
| Chemical | |
Reg. No./Substance:
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0/DNA, Bacterial; 1393-48-2/Thiostrepton |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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