Please use this identifier to cite or link to this item: https://olympias.lib.uoi.gr/jspui/handle/123456789/8542
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dc.contributor.authorKalodimos, C. G.en
dc.contributor.authorGerothanassis, I. P.en
dc.contributor.authorPierattelli, R.en
dc.contributor.authorTroganis, A.en
dc.date.accessioned2015-11-24T16:42:23Z-
dc.date.available2015-11-24T16:42:23Z-
dc.identifier.issn0162-0134-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/8542-
dc.rightsDefault Licence-
dc.subjecthemoproteinsen
dc.subjectsynthetic model compoundsen
dc.subjectmultinuclear magnetic resonance spectroscopyen
dc.subjectnuclear-magnetic-resonanceen
dc.subjectc-o uniten
dc.subjectsuperstructured hemoprotein modelsen
dc.subjectray structural dataen
dc.subjectvibrational frequenciesen
dc.subjectchemical-shiftsen
dc.subjectmonoxide bindingen
dc.subjectraman-spectroscopyen
dc.subjectporphyrinen
dc.subjectiron(ii)en
dc.titleMultinuclear (C-13, O-17, Fe-57) NMR studies of carbonmonoxy heme proteins and synthetic model compoundsen
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.secondary<Go to ISI>://000086988500054-
heal.identifier.secondaryhttp://ac.els-cdn.com/S0162013499002391/1-s2.0-S0162013499002391-main.pdf?_tid=2ca9719ec7041a90fae4c907ee8b128c&acdnat=1333029795_ab7762d53f18f9c93a1c882558e05f2a-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείαςel
heal.publicationDate2000-
heal.abstractC-13, O-17 and Fe-57 NMR spectra of several carbonmonoxy hemoprotein models with varying polar and steric effects of the distal organic superstructure, constraints of the proximal side, and porphyrin ruffling are reported. Both heme models and heme proteins obey a similar excellent linear delta(C-13) versus nu(C-O) relationship which is primarily due to modulation of pi-back-bonding from the Fe d(pi) to CO pi* orbital by the distal pocket polar interactions. The lack of correlation between delta(C-13) and delta(O-17) suggests that the two probes do not reflect a similar type of electronic and structural perturbation. delta(O-17) is not primarily influenced by the local distal field interactions and does not correlate with any single structural property of the Fe-C-O unit; however, atropisomerism and deformation of the porphyrin geometry appear to play a significant role. Fe-57 shieldings Vary by nearly 900 ppm among various hemes and an excellent correlation was found between delta(Fe-57) and the absolute crystallographic average displacement of the meso carbon atoms, \C-m\ relative to the porphyrin core mean plane. The excellent correlation between iron-57 shieldings and the average shieldings of the meso carbons of the porphyrin skeleton of TPP derivatives suggests that the two probes reflect a similar type of electronic and structural perturbation which is primarily porphyrin ruffling. (C) 2000 Elsevier Science Inc. All rights reserved.en
heal.publisherElsevieren
heal.journalNameJ Inorg Biochemen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά). ΧΗΜ

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