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  • 1990-1994  (2)
  • 1975-1979  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 277 (1979), S. 649-651 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] For our test we used data on six of the enzymes used by Koehn and Eanes4 and estimated the MWs on a series of at least seven enzymes in Drosophila melanogaster for which such information was not previously available. We excluded several enzymes from our analysis because of inadequacies in the data. ...
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 364 (1993), S. 766-766 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - The debate1'2 concerning the proposed transmission of HIV to five patients of a dentist suffering from AIDS highlights the difficulties in establishing networks of HIV transmission from the analysis of viral nucleotide sequence data. The details of that particular case ...
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1617-4623
    Keywords: Retrotransposon ; LINE element ; Drosophila melanogaster
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We have analysed the structures of three phenotypic revertant alleles of a gypsy retrotransposon-induced mutation at the cut locus of Drosophila melanogaster. All three revertants are associated with the insertion of jockey transposons into a common region of gypsy. Two of these alleles are complete reversions to wild type. One complete revertant (ct +D) is derived from a third allele, a partial revertant (ct MRPD) by a deletion of part of the gypsy sequence flanking the jockey transposon. Sequence differences between the jockey elements in ct MRpD and ct +D suggest that this deletion may have been created by the insertion of a second jockey near to the first, followed by recombinational excision of a composite jockey and the region between the two genetic elements. The other complete revertant also carries a deletion of gypsy DNA flanking the jockey insertion. The deleted regions of both complete revertants and the target region for all the jockey insertions contain a repeated sequence that resembles a transcriptional enhancer. The strength of the cut phenotype in these mutants correlates with the proportion of this region remaining near the gypsy transcriptional start site, suggesting that the jockey insertions relieve the gypsy-induced mutation at cut by interfering with a region which is required for the transcriptional competence of gypsy.
    Type of Medium: Electronic Resource
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