Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12779/3611
DC FieldValueLanguage
dc.contributor.authorNiccolai, Nerien_us
dc.contributor.authorRossi, Claudioen_us
dc.contributor.authorValensin, Giannien_us
dc.contributor.authorMascagni, P.en_us
dc.contributor.authorGibbons, W. A.en_us
dc.date.accessioned2021-03-30T14:34:51Z-
dc.date.available2021-03-30T14:34:51Z-
dc.date.issued1984-
dc.identifier.issn0022-3654en_US
dc.identifier.urihttp://hdl.handle.net/20.500.12779/3611-
dc.description49343en_US
dc.description.abstractAn investigation into the modes of interaction and mechanisms of proton relaxation enhancement of the ternary system dimethyl sulfoxide-nitroxide-gramicidin S has been performed. The data are consistent with previous studies of binary solvent-nitroxide systems. Both random collisional complexes involving van der Waals nitroxyl electron-proton contacts and hydrogen-bonded nitroxyl group-amide hydrogen interactions are important: they rationalize how the conformation of the peptide governs the relative proton relaxation rate enhancements and provide a mechanism that allows electron dipole-nuclear dipole relaxation. Although a fully quantitative account of the relative proton relaxation enhancements is too complex, this qualitative interpretation gives further justification for the use of the nitroxide perturbation method for delineating exposed vs. shielded protons in molecules and hence as an alternative approach to solution conformational analysis. © 1984 American Chemical Society.en_US
dc.language.isoenen_US
dc.relationNoneen_US
dc.relation.ispartofTHE JOURNAL OF PHYSICAL CHEMISTRYen_US
dc.titleAn investigation of the mechanisms of nitroxide-induced proton relaxation enhancements in biopolymersen_US
dc.typeArticleen_US
dc.identifier.scopus2-s2.0-0345498072en_US
dc.identifier.urlhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0345498072&partnerID=40&md5=02815ec2c051d7fd153b1cc24f3d3f07en_US
dc.relation.volume88en_US
dc.description.firstpage5689en_US
dc.description.lastpage5692en_US
dc.description.thirdmissionNot applicableen_US
item.cerifentitytypePublications-
item.grantfulltextnone-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypeArticle-
item.fulltextNo Fulltext-
crisitem.author.orcid0000-0002-6919-6908-
crisitem.author.orcid0000-0001-6032-1015-
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