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  • Adenine tautomers, relative stabilities of ∼  (1)
  • Biopolymer constituents, protonation of ∼  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Theoretical chemistry accounts 52 (1979), S. 129-145 
    ISSN: 1432-2234
    Schlagwort(e): Adenine tautomers, relative stabilities of ∼ ; Guanine tautomers, relative stabilities of ∼
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract The relative stabilities of a series of adenine and guanine tautomers have been calculated using anab initio Hartree-Fock-Roothaan SCF MO method. The calculated relative stabilities agree in general with the results of earlier semiempirical studies. According to the present study, tautomeric forms with regular Kekulé structure for the six-membered purine ring are the most stable. The amine-imine tautomerization of purine bases is not likely to be responsible for spontaneous mutations in DNA.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Theoretical chemistry accounts 54 (1979), S. 251-258 
    ISSN: 1432-2234
    Schlagwort(e): Biopolymer constituents, protonation of ∼ ; Purine bases
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract Proton affinities of a large number of tautomeric adenine and guanine structures have been calculated using theab initio Hartree-Fock-Roothaan SCF method. For guanine, and to a lesser extent for adenine, it is likely that several protonated forms may co-exist in acidic solutions. Protonation at the “free” adenine and guanine positions in DNA may introduce effective acceptor levels between the energy bands of the polymer that may cause fundamental changes in the conduction properties of DNA.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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