1991
Electron spin-lattice relaxation and spectral diffusion measurements on tyrosine radicals in proteins
Beck W, Innes J, Lynch J, Brudvig G. Electron spin-lattice relaxation and spectral diffusion measurements on tyrosine radicals in proteins. Journal Of Magnetic Resonance (1969) 1991, 91: 12-29. DOI: 10.1016/0022-2364(91)90403-g.Peer-Reviewed Original ResearchSpectral diffusion processesMicrowave pulsesSpectral diffusionSpin-spin interactionsElectron spin-lattice relaxationSpin-lattice relaxationRelaxation kineticsLong microwave pulsesPhotosystem IIRelaxation rate 1T1Time scalesSpin-spin relaxation time T2Saturation recoverySpin-echo methodRelaxation time T2Tyrosine radicalsSaturating pulseTime T2Diffusion processPulsesDominant contributionDiffusion measurementsLarge separationSaturation recovery methodFrozen glasses
1990
Electron Spin-Lattice Relaxation of the Stable Tyrosine Radical D+ in Photosystem II
Beck W, Innes J, Brudvig G. Electron Spin-Lattice Relaxation of the Stable Tyrosine Radical D+ in Photosystem II. 1990, 817-820. DOI: 10.1007/978-94-009-0511-5_188.Peer-Reviewed Original ResearchMn complexesO2-evolving centerDark stable S1 statePhotosystem IIPhotosynthetic H2O oxidationElectron paramagnetic resonance spectraRedox-active sitesWeak dipolar couplingsParamagnetic resonance spectraH2O oxidationOxidation stateTyrosine radicalsDipolar couplingsResonance spectraS0 stateS1 stateTyr-160D2 polypeptidesRelaxation propertiesSpin-lattice relaxation rateMagnetic propertiesElectron spin-lattice relaxation rateSpin-lattice relaxationComplexesRelaxation rate