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dc.contributor.authorChartchalerm Isarankura-Na-Ayudhyaen_US
dc.contributor.authorNanchaya Seesaien_US
dc.contributor.authorSittichai Thinjomen_US
dc.contributor.authorVirapong Prachayasittikulen_US
dc.contributor.otherMahidol Universityen_US
dc.date.accessioned2018-09-13T06:17:16Z-
dc.date.available2018-09-13T06:17:16Z-
dc.date.issued2009-12-01en_US
dc.identifier.citationEXCLI Journal. Vol.8, (2009), 89-96en_US
dc.identifier.issn16112156en_US
dc.identifier.other2-s2.0-70349930068en_US
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=70349930068&origin=inwarden_US
dc.identifier.urihttp://repository.li.mahidol.ac.th/dspace/handle/123456789/26946-
dc.description.abstractIn the present study, green fluorescent protein (GFP) is successfully applied for instantaneous monitoring of hydroxyl radical-mediated protein alterations. Hydroxyl radical generated from metal-mediated Fenton's reaction (in the presence of 50 μM copper ions, 10 mM ascorbic acid and 1.05 % hydrogen peroxide) rapidly suppressed the fluorescent emission of 60 % in a few seconds followed by a gradual decrease up to 75 % maximum inactivation was reached. The production of hydroxyl radical was experimentally proven to be specifically derived from copper-catalyzed Fenton's reaction in which other divalent cations (e. g. Zn2+, Cd2+, Mn2+, Co2+ and Ni2+) exerted no inhibitory interaction. Supplementation of oxidative scavengers and metal chelators into the assay reaction provided protective effects on the fluorescent intensity. The degree of protection was in the order of EDTA > histidine >>> glutathione ~ sodium azide > thiourea ~ mannitol. The findings herein gain insights not only into the deleterious effect of reactive oxygen species on biological macromolecules but also the potential applica-bility as a versatile antioxidant screening assay.en_US
dc.rightsMahidol Universityen_US
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=70349930068&origin=inwarden_US
dc.subjectAgricultural and Biological Sciencesen_US
dc.subjectBiochemistry, Genetics and Molecular Biologyen_US
dc.subjectPharmacology, Toxicology and Pharmaceuticsen_US
dc.titleInstantaneous monitoring of hydroxyl radical-mediated protein alterations by green fluorescent proteinen_US
dc.typeArticleen_US
dc.rights.holderSCOPUSen_US
Appears in Collections:Scopus 2006-2010

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