title: Cointegrate resolution following transposition of Tn1792 in Streptomyces avermitilis facilitates analysis of transposon-tagged genes.
abstract: The insertion sequence IS6100, belonging to the IS6 family, normally forms a cointegrate as an end product of transposition. The IS6100-based minitransposon, Tn1792, has been developed as a genetic tool to mutagenise antibiotic-producing Streptomyces. Here, we describe resolution of Tn1792 cointegrates in Streptomyces avermitilis that can facilitate both the initial isolation of Tn1792 insertion mutants and also the subsequent rescue of Tn1792-tagged sequences. This is the first reported example of cointegrate resolution for an IS6-type transposable element. As a result of mutagenesis, several putative genes involved in morphological development and antibiotic production have been isolated.
authors.affiliation: School of Biological Sciences, University of Wales Swansea, Singleton Park, SA2 8PP, Swansea, UK.
authors.forename: Andrew
authors.initials: A
authors.lastname: Pitman
authors.forename: Paul
authors.initials: P
authors.lastname: Herron
authors.forename: Paul
authors.initials: P
authors.lastname: Dyson
mesh_terms: D000900:Anti-Bacterial Agents / Q000378:metabolism; D001483:Base Sequence; D004251:DNA Transposable Elements / Q000235:genetics*; D005798:Genes, Bacterial / Q000235:genetics; D008969:Molecular Sequence Data; D016254:Mutagenesis, Insertional; D009840:Oligomycins / Q000378:metabolism; D010957:Plasmids; D011995:Recombination, Genetic; D017422:Sequence Analysis, DNA; D013302:Streptomyces / Q000235:genetics* / Q000254:growth & development / Q000378:metabolism
chemical_list: D000900:Anti-Bacterial Agents; D004251:DNA Transposable Elements; D009840:Oligomycins