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  • 1
    Electronic Resource
    Electronic Resource
    No evidence for ‘stress’ α -globin genes in chicken (1982)
    [s.l.] : Nature Publishing Group
    Nature 295 (1982), S. 710-712 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Reactivation of genes due to physiological stress, such as induction of anaemia, is an important concept in the regulation of gene activity. The difference between the stress gene reported in chicken and the fetal genes of animals mentioned above is that the protein product of the stress gene could ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/295710a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Sequences coding for proteins expressed in liver and for globin in poly(A)+ and poly(A)− RNA fractions from nuclei and cytoplasm of chicken immature red blood cells (1978)
    Springer
    Molecular biology reports 4 (1978), S. 39-44 
    Details
    ISSN: 1573-4978
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract By hybridization with [3H]labeled globin cDNA the contents of globin coding sequences in total nuclear RNA, poly(A)+nuclear RNA, poly(A)--nuclear RNA and polysomal RNA of chicken immature red blood cells was determined to be 0.86%, 20%, 0.42% and 1% respectively. As the poly(A)+-fraction comprises only about 2% of total nuclear RNA, globin coding sequences are distributed with 49% in the poly(A)+-fraction and with 51% in the poly(A)--fraction. Part of the mRNA sequences which are found in liver are also transcribed in immature red blood cells. These sequences are enriched in poly(A)+-nuclear RNA as the globin coding sequences but their total amount in the poly(A)+-fraction is much smaller than in the poly(A)--fraction. When nuclear RNA from immature red blood cells was translated in an ascites tumor cell-free system, 20% of the newly synthesized proteins were globin chains. The percentage of globin chains in the newly synthesized proteins increased to over 70% when poly(A)+-nuclear RNA was translated. Only about 7.5% of globin chains were found in proteins coded by poly(A)--nuclear RNA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00775179
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  • 3
    Electronic Resource
    Electronic Resource
    Protein coding sequences in newly synthesized nuclear RNA from chicken immature red blood cells (1979)
    Springer
    Molecular biology reports 5 (1979), S. 161-164 
    Details
    ISSN: 1573-4978
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The contents of globin gene transcripts and other protein coding gene transcripts (preferentially expressed in liver) within nuclear RNA from chicken immature red blood cells were analyzed by the method of cDNA hybridization. A comparison of the hybridization values obtained from steady state nuclear RNA and pulse labeled newly synthesized nuclear RNA demonstrated, that (a) there is a vast excess of globin gene transcripts over other individual protein coding transcripts and (b) the ratio of globin gene transcripts to the amount of other protein gene transcripts is nearly the same within both RNA species. We conclude, that in chicken immature red blood cells the globin genes are transcribed either at a much higher rate than other protein coding genes or that most of the transcription products of other genes transcribed at higher rates must be degraded during or very shortly after transcription. Moreover, an accumulation of both types of transcripts was observed, as the contents of these RNA molecules was higher within steady state nuclear RNA than within the newly synthesized RNA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00778416
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