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  • 1
    Electronic Resource
    Electronic Resource
    Analysis of the cis-acting DNA elements required for piggyBac transposable element excision (1997)
    Springer
    Molecular genetics and genomics 255 (1997), S. 605-610 
    Details
    ISSN: 1617-4623
    Keywords: Key words Transposable element ; Excision ; Recombination ; piggyBac ; Lepidoptera
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The terminal DNA sequence requirements for piggyBac transposable element excision were explored using a plasmid-based assay in transfected, cultured insect cells. A donor plasmid containing duplicate 3′piggyBac terminal inverted repeats was constructed that allowed individual nucleotides or groups of nucleotides within one of the 3′ repeats to be mutated. The relative extent of excision using the mutated end versus the wild-type end was then assayed. Removal of even one of the terminal 3′ G nucleotides from the piggyBac inverted repeat, or removal of the dinucleotide AA from the flanking TTAA target site prevents excision of piggyBac at the mutated terminus. Incorporation of an asymmetric TTAC target site at the 3′ end does not prevent excision from the mutated end. Thus, both piggyBac DNA and flanking host DNA appear to play crucial roles in the excision process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004380050534
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  • 2
    Electronic Resource
    Electronic Resource
    Transposition of the piggyBac element in embryos of Drosophila melanogaster, Aedes aegypti and Trichoplusia ni (1999)
    Springer
    Molecular genetics and genomics 261 (1999), S. 803-810 
    Details
    ISSN: 1617-4623
    Keywords: Key words Transposable element ; Transformation vector ; piggyBac ; Insects
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The Lepidopteran transposable element piggyBac is being recognized as a useful vector for genetic engineering in a variety of insect species. This transposon can mediate transformation in the Dipteran species Ceratitis capitata, and can potentially serve as a versatile vector for transformation of a wide variety of insect species. Using a plasmid-based interplasmid transposition assay, we have demonstrated that this transposon, of the short inverted terminal repeat type, is capable of transposition in embryos of three different insect species, Drosophila melanogaster, the yellow fever mosquito Aedes aegypti, and its host of origin, Trichoplusia ni. This assay can confirm the potential utility of piggyBac as a gene transfer tool in a given insect species, and provides an experimental model for assessing molecular mechanisms of transposon movement.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004380050024
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    Paper (German National Licenses)
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