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  • Springer  (2)
  • 1985-1989  (2)
Document type
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  • Springer  (2)
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  • 1985-1989  (2)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Overlapping transcription units in the transient receptor potential locus ofDrosophila melanogaster (1987)
    Springer
    Somatic cell and molecular genetics 13 (1987), S. 661-669 
    Details
    ISSN: 1572-9931
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract We report the identification in Drosophila melanogaster of two mRNA transcripts that are derived from the transient receptor potential locus by transcription in opposite directions. The two transcripts overlap; one transcript has, as part of its 5′-untranslated sequence, the reverse complement of 442 bp of the 3′ terminus of the transcript derived from the opposite DNA strand. Conceptual translation of the corresponding cDNA sequences predicted for one of the transcripts a polypeptide whose C terminus shares sequence and structural similarity with the cell-wall-binding domain of protein A from Staphylococcus aureus; for the transcript derived from the opposite DNA strand, a polypeptide of 264 amino acids was predicted, which showed no significant sequence homology with any known protein. The two transcripts have different tissue specificities: one is expressed predominantly in the eye and the other is in the body. These findings may have implications in the relationship between the organization of overlapping genes on opposite DNA strands and regulation of gene expression by antisense RNA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01534486
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Immunocytochemical localization of photopigments in cephalopod retinae (1987)
    Springer
    Journal of neurocytology 16 (1987), S. 403-415 
    Details
    ISSN: 1573-7381
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The photopigments, rhodopsin and retinochrome, have been localized in cephalopod retinae using light and electron microscopic immunocytochemical methods. Polyclonal antibodies prepared against squid opsin demonstrated the presence of this protein in the photoreceptor rhabdomes, Golgi zone, Golgi-associated vesicles, plasma membrane, large cytoplasmic vesicles, and axonal membranes of octopus retinae. Monoclonal anti-opsin immunostained the rhabdomes and multivesicular bodies in the photoreceptor inner segments of squid. We believe the multivesicular bodies are involved in rhabdome turnover. Polyclonal anti-retinochrome localized this photopigment to the myeloid bodies of the photoreceptor inner segments, the rhabdomes, and to the extracellular space between opposing rhabdomeres in octopus retina. The results suggest some interesting functional relationships between rhodopsin and retinochrome with regard to chromophore exchange between illuminated forms of these photopigments and chromophore addition to newly synthesized opsin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01611350
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    Paper (German National Licenses)
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