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Base Pairing Enhances Fluorescence and Favors Cyclobutane Dimer Formation Induced upon Absorption of UVA Radiation by DNA

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Base Pairing Enhances Fluorescence and Favors Cyclobutane Dimer Formation Induced upon Absorption of UVA Radiation by DNA

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dc.contributor.author Banyasz, Akos es_ES
dc.contributor.author Vayá Pérez, Ignacio es_ES
dc.contributor.author Changenet-Barret, Pascale es_ES
dc.contributor.author Gustavsson, Thomas es_ES
dc.contributor.author Douki, Thierry es_ES
dc.contributor.author Markovitsi, Dimitra es_ES
dc.date.accessioned 2013-04-29T13:52:35Z
dc.date.issued 2011-03-18
dc.identifier.issn 0002-7863
dc.identifier.uri http://hdl.handle.net/10251/28319
dc.description.abstract [EN] The photochemical properties of the DNA duplex (dA)(20) center dot (dT)(20) are compared with those of the parent single strands. It is shown that base pairing increases the probability of absorbing UVA photons, probably due to the formation of charge-transfer states. UVA excitation induces fluorescence peaking at similar to 420 nm and decaying on the nanosecond time scale. The fluorescence quantum yield, the fluorescence lifetime, and the quantum yield for cyclobutane dimer formation increase upon base pairing. Such behavior contrasts with that of the UVC-induced processes. es_ES
dc.description.sponsorship We thank Mrs. Si. Karpati and M. Perron for their help, Dr. R. lmprota for helpful discussions, and the French Agency for Research (ANR PCV07_ 194999) for financial support. I.V. acknowledges the Conselleria de Educacion-Generalitat Valenciana (VALi+D program, No. 20100331).
dc.language Inglés es_ES
dc.publisher American Chemical Society es_ES
dc.relation.ispartof Journal of the American Chemical Society es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject.classification QUIMICA ANALITICA es_ES
dc.title Base Pairing Enhances Fluorescence and Favors Cyclobutane Dimer Formation Induced upon Absorption of UVA Radiation by DNA es_ES
dc.type Artículo es_ES
dc.embargo.lift 10000-01-01
dc.embargo.terms forever es_ES
dc.identifier.doi 10.1021/ja110879m
dc.relation.projectID info:eu-repo/grantAgreement/ANR//PCV07_ 194999/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GVA/VALI+d/APOSTD%2F2010%2F031/ES/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Química - Departament de Química es_ES
dc.description.bibliographicCitation Banyasz, A.; Vayá Pérez, I.; Changenet-Barret, P.; Gustavsson, T.; Douki, T.; Markovitsi, D. (2011). Base Pairing Enhances Fluorescence and Favors Cyclobutane Dimer Formation Induced upon Absorption of UVA Radiation by DNA. Journal of the American Chemical Society. 133:5163-5165. doi:10.1021/ja110879m es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1021/ja110879m es_ES
dc.description.upvformatpinicio 5163 es_ES
dc.description.upvformatpfin 5165 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 133 es_ES
dc.relation.senia 41340
dc.identifier.pmid 21417388
dc.contributor.funder Agence Nationale de la Recherche, Francia
dc.contributor.funder Generalitat Valenciana


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