"To investigate the role of UV irradiation in base-pairing we have studied guanine (G) and cytosine(C) base pairs. We distinguished base-pair structures by IR-UV hole-burning spectroscopy as well as by high-level correlated ab initio calculations. The Watson-Crick structure exhibits broad UV absorption, in stark contrast to other GC structures and other base-pair structures. This broad absorption may be explained by a rapid internal conversion that makes this specific base pair arrangement uniquely photochemically stable." . "Grace, L." . "Hobza, Pavel" . "[9810DAE801A5]" . "Proceedings of the National Academy of Sciences of the United States of America" . "Photochemical selectivity in guanine-cytosine base-pair structures"@en . "2"^^ . "Photochemical selectivity in guanine-cytosine base-pair structures" . . . "4"^^ . . . "Kabel\u00E1\u010D, Martin" . . "RIV/61388963:_____/05:00020908!RIV06-GA0-61388963" . . . "6"^^ . . "Photochemick\u00E1 selektivita v p\u00E1ru baz\u00ED guanin-cytosine"@cs . "102" . "Vries de, M. S." . . "Spektroskopick\u00E9 vlastnosti p\u00E1ru baz\u00ED guanin-cytosin byly studov\u00E1ny pomoc\u00ED experiment\u00E1ln\u00EDch (I\u010C a UV spektroskopie) a teoretick\u00FDch (p\u0159esn\u00E9 korelovan\u00E9 kvantov\u011B-chemick\u00E9 v\u00FDpo\u010Dty) metod. Watson-Crickovsk\u00E1 struktura tohoto p\u00E1ru b\u00E1z\u00ED vykazuje narozd\u00EDl od ostatn\u00EDch struktur tohoto p\u00E1ru \u0161irokou specifickou UV absorbci, kter\u00E1 m\u016F\u017Ee b\u00FDt vysv\u011Btlena velmi rychlou vnit\u0159n\u00ED konverz\u00ED."@cs . "20;23" . "Photochemical selectivity in guanine-cytosine base-pair structures" . . "P(GA203/05/0009), Z(AV0Z40550506)" . . "To investigate the role of UV irradiation in base-pairing we have studied guanine (G) and cytosine(C) base pairs. We distinguished base-pair structures by IR-UV hole-burning spectroscopy as well as by high-level correlated ab initio calculations. The Watson-Crick structure exhibits broad UV absorption, in stark contrast to other GC structures and other base-pair structures. This broad absorption may be explained by a rapid internal conversion that makes this specific base pair arrangement uniquely photochemically stable."@en . . . . "1" . "DNA base pairs; IR-UV spectroscopy; phytochemistry"@en . "RIV/61388963:_____/05:00020908" . . "Photochemical selectivity in guanine-cytosine base-pair structures"@en . "0027-8424" . . . "535920" . "Photochemick\u00E1 selektivita v p\u00E1ru baz\u00ED guanin-cytosine"@cs . . "Abo-Riziq, A." . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "Nir, E." .