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  • 1985-1989  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    A repetitive DNA sequence in the salmonid fishes similar to a retroviral long terminal repeat (1988)
    Springer
    Journal of molecular evolution 27 (1988), S. 1-7 
    Details
    ISSN: 1432-1432
    Keywords: Long terminal repeat ; Protamine gene ; Salmonid fishes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We describe the characteristics of a repetitive DNA sequence from the rainbow trout and related salmonid fishes that is similar to a retroviral long terminal repeat (LTR). The repeat is 160 bp long and contains a region of homology to the LTR of the avian sarcoma virus. Two clones with this repeat from the chum salmon also have a polypurine tract and tRNA binding site, respectively, and these clones may represent the two LTRs of a retrovirus or retroviral-like repetitive element. Copies of the repeat are also adjacent to rainbow trout and chum salmon protamine genes. These repeats may be “solo” LTRs. There appears to be some polymorphism in restriction sites between individual rainbow trout and considerable differences between salmonid fish species when the repeat is used as a probe.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02099724
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Characterization of a protamine gene from the chum salmon (Oncorhynchus keta) (1988)
    Springer
    Journal of molecular evolution 27 (1988), S. 8-16 
    Details
    ISSN: 1432-1432
    Keywords: Protamine ; Repetitive DNA ; Sequence divergence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We have cloned and sequenced a protamine gene from the chum salmon (Oncorhynchus keta). This gene sequence is highly homologous to one found in the rainbow trout (Salmo gairdneri), including the conservation of two structurally different repetitive elements. One of these repeats resembles a nonviral retroposon and the second is similar to a retroviral-like transposable element. The degree of sequence divergence between theO. keta andS. gairdneri genes is much less within the transcription unit than in the repetitive elements or the remainder of the flanking DNA, suggesting that since the coding and the untranslated regions are highly conserved, both contribute significantly to the structure and stability of protamine mRNA (or its cognate messenger ribonucleoprotein) and this may be important for the translational control of protamine synthesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02099725
    Location Call Number Limitation Availability
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    Paper (German National Licenses)
    Fulltext
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