A DFT study of the nitric oxide and tyrosyl radical interaction: A proposed radical mechanism

dc.contributor.authorPapavasileiou, K. D.en
dc.contributor.authorTzima, T. D.en
dc.contributor.authorSanakis, Y.en
dc.contributor.authorMelissas, V. S.en
dc.date.accessioned2015-11-24T16:54:21Z
dc.date.available2015-11-24T16:54:21Z
dc.identifier.issn1439-4235-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/10146
dc.rightsDefault Licence-
dc.subjectdensity functional calculationsen
dc.subjectnitrogen oxidesen
dc.subjectnitrotyrosineen
dc.subjectreaction mechanismsen
dc.subjecttyrosyl radicalen
dc.subjectdensity-functional calculationsen
dc.subjectribonucleotide reductaseen
dc.subjectelectron-transferen
dc.subjecttunneling calculationsen
dc.subjectphotosystem-iien
dc.subjectreaction ratesen
dc.subjectab-initioen
dc.subjecthydrogenen
dc.subjectmodelen
dc.subjectbiochemistryen
dc.titleA DFT study of the nitric oxide and tyrosyl radical interaction: A proposed radical mechanismen
heal.abstractThe present study employs a complete theoretical investigation, at the B3LYP/cc-pVTZ level of theory, of the interactions between the tyrosyl radical and nitric oxide, exploring in detail the nitrotyrosine formation radical mechanism. Tyrosyl radicals play an essential role in catalytic reactions of numerous enzymes and biological systems have regulated appropriate mechanisms for their formation. Nitric oxide reacts with the tyrosyl radical and affords a weak intermediate complex which, through a sequence of non-ionic water catalyzed and biologically feasible intermediate reactions, yields the iminoxyl radical. The iminoxyl radical further combines with hydroxyl radical, a species present in pathophysiological conditions, to yield nitrotyrosine.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.primaryDOI 10.1002/cphc.200700434-
heal.identifier.secondary<Go to ISI>://000252503700005-
heal.identifier.secondaryhttp://onlinelibrary.wiley.com/store/10.1002/cphc.200700434/asset/2595_ftp.pdf?v=1&t=hmsyw8po&s=5fbf0433df2011356f550d615b820d8fac47e155-
heal.journalNameChemphyschemen
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate2007-
heal.publisherWiley-VCH Verlagen
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείαςel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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