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  • General, theoretical and mathematical biophysics (including logic of biosystems, quantum biology and relevant aspects of thermodynamics, information theory, cybernetics and bionics)  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 2 (1983), S. 1480-1488 
    ISSN: 0392-6737
    Keywords: General, theoretical and mathematical biophysics (including logic of biosystems, quantum biology and relevant aspects of thermodynamics, information theory, cybernetics and bionics)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto In questo lavoro si mettono in evidenza significative differenze nelle proprietà spettrali del DNA di T2 intrafagico e libero in soluzione nell'intervallo (230÷320) nm. Queste differenze sono molto simili a quelle ottenute in una soluzione di DNA nativo abbassando ilpH a partire dal valore neutro. Su questa base si avanza l'ipotesi di una protonazione della citosina nel DNA intrafagico.
    Abstract: Резюме В этой работе рассматриваются различия в спектральных свойствах (в области (230÷320) нм) между внутрифаговыми и свободными T2 ДНК. Эти различия очень сходны с изменениями в поглощении, полученными для естественного раствора ДНК, когдаpH уменьшается по сравнению с нейтральной величиной. На основе этого подхода выдвигается гипотеза протонации цитозина во внутрифаговой ДНК.
    Notes: Summary Relevant differences in the spectral properties (in the (230÷320) nm range) between intraphage and free T2 DNA are reported in this work. These differences are very similar to the variation in absorption obtained for a native DNA solution when thepH is lowered starting from the neutral value. On this basis, cytosine protonation in intraphage DNA is hypothesized.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 2 (1983), S. 1489-1496 
    ISSN: 0392-6737
    Keywords: General, theoretical and mathematical biophysics (including logic of biosystems, quantum biology and relevant aspects of thermodynamics, information theory, cybernetics and bionics)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Si studia l'effetto dell'irraggiamento UV sul DNA del fago T2 in situ e libero in soluzione mediante un'analisi delle modificazioni dei profili di fusione e degli spettri d'assorbimento. L'analogo comportamento fotochimico osservato nei due sistemi sembra escludere significative differenze nella loro struttura secondaria.
    Abstract: Резюме Исследуется влияние ультрафиолетового облучения на ДНК фага T2 на месте и на свободные молекулы ДНК в растворе, посредством анализа изменений профилей плавления и изменений спектров поглощения. Аналогичное фотохимическое ооведение, полученное в этих двух системах, по-видимому, исключает значительные различия между их вторичными структурами.
    Notes: Summary The effect of UV irradiation onin situ and free T2 DNA is studied by analysing the melting profiles and absorption spectra modifications. The similar photochemical behaviour obtained in the two systems seems to exclude significant differences in their secondary structure.
    Type of Medium: Electronic Resource
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