2004
Rapid timescale processes and the role of electronic surface coupling in the photolysis of diatomic ligands from heme proteins
Champion P, Rosca F, Ionascu D, Cao W, Ye X. Rapid timescale processes and the role of electronic surface coupling in the photolysis of diatomic ligands from heme proteins. Faraday Discussions 2004, 127: 123-135. PMID: 15471342, DOI: 10.1039/b316440c.Peer-Reviewed Original ResearchConceptsVibrational coherenceExcited state potential energy surfacesState potential energy surfaceLaser excitationSpin-forbidden naturePotential energy surfaceIron-histidine modeHeme protein myoglobinUltrafast time scaleIron spin stateRaman inactive modesFemtosecond laser excitationResonance Raman measurementsDiatomic ligandsEnergy surfaceGeminate recombinationUnpaired electronLigand dissociationSurface crossingsIron atomsUnphotolyzed stateVibrational frequenciesField interactionsExcited statesProtein myoglobin
1997
Salt and pH effects on electrochemistry of myoglobin in thick films of a bilayer-forming surfactant
Nassar A, Rusling J, Kumosinski T. Salt and pH effects on electrochemistry of myoglobin in thick films of a bilayer-forming surfactant. Biophysical Chemistry 1997, 67: 107-116. PMID: 9397521, DOI: 10.1016/s0301-4622(97)00027-6.Peer-Reviewed Original ResearchConceptsDidodecyldimethylammonium bromideFilms of didodecyldimethylammonium bromideDidodecyldimethylammonium bromide filmsElectrochemistry of myoglobinHeme protein myoglobinLinear dichroism studiesFT-IR spectraPH of external solutionBind anionsVoltammetric dataElectron transferFT-IRProtein myoglobinHydrophobic environmentPositive chargeMB surfaceDichroism studiesElectrochemistryUnfolded formFilmsDonnan potentialPH effectElectrodeSaltSalt concentrationProton-Coupled Electron Transfer from Electrodes to Myoglobin in Ordered Biomembrane-like Films
Nassar A, Zhang Z, Hu N, Rusling J, Kumosinski T. Proton-Coupled Electron Transfer from Electrodes to Myoglobin in Ordered Biomembrane-like Films. The Journal Of Physical Chemistry B 1997, 101: 2224-2231. DOI: 10.1021/jp962896t.Peer-Reviewed Original ResearchElectron transferProton-coupled electron transferElectron transfer rate constantDidodecyldimethylammonium bromideOne-electron reductionHeme iron ligationElectroactive surface concentrationTransfer rate constantHeme protein myoglobinThin liquid crystal filmsAssociated with protonationProtonation of histidine residuesSoret band absorbancePK a1Protonated formLiquid crystal filmsProtonation equilibriaHeme pocketProximal histidineDistal histidineIron ligationProtein myoglobinKinetic conformerRate constantsCrystal films
This site is protected by hCaptcha and its Privacy Policy and Terms of Service apply