2005
Construction and Characterization of Genetically Modified Synechocystis sp. PCC 6803 Photosystem II Core Complexes Containing Carotenoids with Shorter π-Conjugation than β-Carotene*
Bautista J, Tracewell C, Schlodder E, Cunningham F, Brudvig G, Diner B. Construction and Characterization of Genetically Modified Synechocystis sp. PCC 6803 Photosystem II Core Complexes Containing Carotenoids with Shorter π-Conjugation than β-Carotene*. Journal Of Biological Chemistry 2005, 280: 38839-38850. PMID: 16159754, DOI: 10.1074/jbc.m504953200.Peer-Reviewed Original ResearchMeSH KeywordsBeta CaroteneCarotenoidsCationsChlorophyllChromatographyChromatography, High Pressure LiquidElectronsGene DeletionLightManganeseModels, ChemicalModels, MolecularMutationOxidation-ReductionOxidoreductasesOxygenPhotosynthetic Reaction Center Complex ProteinsPhotosystem II Protein ComplexPigmentationRhodobacter capsulatusSpectrophotometrySpectrophotometry, InfraredSynechocystisTemperatureTime FactorsTyrosineConceptsPhytoene desaturase geneII core complexesDesaturase genePS II core complexesSynechocystis spCore complexPS II assemblyCarotene desaturase genePhotosystem II core complexPCC 6803Rhodobacter capsulatusWild typeMutant strainRedox functionPhotosystem IISecondary electron transfer pathwayGenesElectron transfer pathwayLight-induced formationCarotenoidsSpChlorophyllConjugated pi-electron systemPathwayComplexes
2003
Two Redox-Active β-Carotene Molecules in Photosystem II †
Tracewell C, Brudvig G. Two Redox-Active β-Carotene Molecules in Photosystem II †. Biochemistry 2003, 42: 9127-9136. PMID: 12885246, DOI: 10.1021/bi0345844.Peer-Reviewed Original ResearchMeSH KeywordsAdaptation, PhysiologicalBeta CaroteneCyanobacteriaDarknessElectron Spin Resonance SpectroscopyFree RadicalsFreezingLight-Harvesting Protein ComplexesNormal DistributionOxidation-ReductionPhotochemistryPhotosynthetic Reaction Center Complex ProteinsPhotosystem II Protein ComplexSpectroscopy, Near-InfraredSpinacia oleraceaTyrosineConceptsSecondary electron transfer pathwayElectron transfer pathwayElectron paramagnetic resonance spectroscopyElectron transfer reactionsElectron transfer pathParamagnetic resonance spectroscopyHole-hopping mechanismPS II core complexesΒ-carotene moleculesPS II membranesII core complexesPhotosystem IIIR spectroscopyPS IILow temperatureCharge separationElectrostatic interactionsOxygen evolutionResonance spectroscopyLow-temperature illuminationInhibited samplesSpectroscopyEquilibrated statePeak variesSynechocystis PCC 6803
1999
Low-Temperature Optical and Resonance Raman Spectra of a Carotenoid Cation Radical in Photosystem II
Vrettos J, Stewart D, de Paula J, Brudvig G. Low-Temperature Optical and Resonance Raman Spectra of a Carotenoid Cation Radical in Photosystem II. The Journal Of Physical Chemistry B 1999, 103: 6403-6406. DOI: 10.1021/jp991464q.Peer-Reviewed Original ResearchCarotenoid cation radicalsCarotenoid cationResonance Raman spectraCation radicalsSecondary electron transfer pathwayRaman spectraFT-Raman spectraPhotosystem II core complexElectron transfer pathwayII core complexesPhotosystem IIReversible photooxidationChemical oxidationCationsLow-temperature illuminationFirst exampleCytochrome b559Absorbance maximumPhotooxidationRadicalsSpectraCore complexPossible natureOxidationSpectrum characteristics