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Article: Kinetics of electron transfer between cytochrome c and iron hexacyanides. Evidence for two electron-transfer sites

TitleKinetics of electron transfer between cytochrome c and iron hexacyanides. Evidence for two electron-transfer sites
Authors
Issue Date1988
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/bbabio
Citation
Biochimica Et Biophysica Acta - Bioenergetics, 1988, v. 934 n. 2, p. 161-168 How to Cite?
AbstractThe electron-transfer reaction between ferrocytochrome c and ferricyanide has been studied by the method of photoexcitation. The observed transfer rate shows saturation behaviour at high ferricyanide concentration. Data analysis indicates that there are two binding sites of vastly different affinities at which electron transfer occurs. The binding constant for the strong binding site decreases from 1600 M -1 to 80 M -1 as the ionic strength increases from 15 mM to 140 mM. At 20°C, the intramolecular electron-transfer rate for this site is 4.65 · 10 4 s -1, which gives an electron-transfer distance of approx. 9.7 Å according to Hopfield's model.
Persistent Identifierhttp://hdl.handle.net/10722/167477
ISSN
2015 Impact Factor: 4.864
2015 SCImago Journal Rankings: 2.671
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorCho, KCen_US
dc.contributor.authorChu, WFen_US
dc.contributor.authorChoy, CLen_US
dc.contributor.authorChe, CMen_US
dc.date.accessioned2012-10-08T03:07:30Z-
dc.date.available2012-10-08T03:07:30Z-
dc.date.issued1988en_US
dc.identifier.citationBiochimica Et Biophysica Acta - Bioenergetics, 1988, v. 934 n. 2, p. 161-168en_US
dc.identifier.issn0005-2728en_US
dc.identifier.urihttp://hdl.handle.net/10722/167477-
dc.description.abstractThe electron-transfer reaction between ferrocytochrome c and ferricyanide has been studied by the method of photoexcitation. The observed transfer rate shows saturation behaviour at high ferricyanide concentration. Data analysis indicates that there are two binding sites of vastly different affinities at which electron transfer occurs. The binding constant for the strong binding site decreases from 1600 M -1 to 80 M -1 as the ionic strength increases from 15 mM to 140 mM. At 20°C, the intramolecular electron-transfer rate for this site is 4.65 · 10 4 s -1, which gives an electron-transfer distance of approx. 9.7 Å according to Hopfield's model.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/bbabioen_US
dc.relation.ispartofBiochimica et Biophysica Acta - Bioenergeticsen_US
dc.subject.meshAnimalsen_US
dc.subject.meshCytochrome C Groupen_US
dc.subject.meshElectron Transporten_US
dc.subject.meshFerricyanidesen_US
dc.subject.meshHorsesen_US
dc.subject.meshKineticsen_US
dc.subject.meshModels, Chemicalen_US
dc.subject.meshOxidation-Reductionen_US
dc.subject.meshThermodynamicsen_US
dc.titleKinetics of electron transfer between cytochrome c and iron hexacyanides. Evidence for two electron-transfer sitesen_US
dc.typeArticleen_US
dc.identifier.emailChe, CM:cmche@hku.hken_US
dc.identifier.authorityChe, CM=rp00670en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/0005-2728(88)90178-8-
dc.identifier.pmid2839234-
dc.identifier.scopuseid_2-s2.0-0023930013en_US
dc.identifier.volume934en_US
dc.identifier.issue2en_US
dc.identifier.spage161en_US
dc.identifier.epage168en_US
dc.identifier.isiWOS:A1988P345500001-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridCho, KC=15129672200en_US
dc.identifier.scopusauthoridChu, WF=35113055100en_US
dc.identifier.scopusauthoridChoy, CL=24287958600en_US
dc.identifier.scopusauthoridChe, CM=7102442791en_US

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