2017
Alternative Electron Acceptors for Photosystem II
Wiwczar J, Brudvig G. Alternative Electron Acceptors for Photosystem II. 2017, 51-66. DOI: 10.1007/978-3-319-48873-8_4.Peer-Reviewed Original ResearchElectron acceptorPhotosystem IIPhotochemical water oxidationElectron acceptor moleculesCobalt coordination complexesElectron acceptor sideElectron transfer pathwayRedox midpoint potentialAlternative electron transfer pathwaysCoordination complexesWater oxidationElectron transferMolecular oxygenMidpoint potentialCation exchangeExogenous electron acceptorsOxygenic photosynthetic organismsAcceptor sidePhotosynthetic electron transport chainAcceptorEnergy applicationsAlternative electron acceptorsThylakoid membranesCytochrome c.Photosynthetic organisms
2005
The mechanism of photosynthetic water splitting
McEvoy J, Gascon J, Batista V, Brudvig G. The mechanism of photosynthetic water splitting. Photochemical & Photobiological Sciences 2005, 4: 940-949. PMID: 16307106, DOI: 10.1039/b506755c.Peer-Reviewed Original ResearchConceptsProtein complex photosystem IIOxygen-evolving complexWater splittingPhotosynthetic water splittingGreen plant chloroplastsMolecular mechanics calculationsPhotosynthetic light reactionsRecent experimental resultsElectron transfer pathwayX-ray crystallographic modelSource of electronsProton concentration gradientPlant chloroplastsProduct protonsMechanics calculationsOxygenic photosynthesisDioxygen gasThylakoid lumenAerobic lifeElectronsThylakoid membranesCatalytic mechanismChemical energyPhotosystem IIManganese ionsConstruction 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
1998
A New Model of Cytochrome B-559 Function Based on the Observation of A Reversible Redox-Linked Interconversion Between Two Redox forms of Cytochrome B-559
Stewart D, Brudvig G. A New Model of Cytochrome B-559 Function Based on the Observation of A Reversible Redox-Linked Interconversion Between Two Redox forms of Cytochrome B-559. 1998, 1113-1116. DOI: 10.1007/978-94-011-3953-3_265.Peer-Reviewed Original ResearchPhotosystem IIRedox formsCyt b559Electron transfer pathwayHigh-potential formLow-potential formPSII samplesMn4 clusterElectron transferCyclic electron transferAlternate electron donorsElectron donorMidpoint potentialSample preparationExtrinsic polypeptidesCytochrome b559Heme environmentB559PhotooxidationP680B-type cytochromeInterconversionPreparation
1997
Fluorescence Quenching by Chlorophyll Cations in Photosystem II †
Schweitzer R, Brudvig G. Fluorescence Quenching by Chlorophyll Cations in Photosystem II †. Biochemistry 1997, 36: 11351-11359. PMID: 9298954, DOI: 10.1021/bi9709203.Peer-Reviewed Original ResearchConceptsFluorescence quenchingPhotosystem IIElectron donorDonor sideElectron paramagnetic resonance spectroscopyRedox-active tyrosinesRedox-active centersCharge-separated stateSteady-state fluorescence quenchingParamagnetic resonance spectroscopyRedox-active componentsElectron donor sideElectron transfer pathwayCytochrome b559Redox stateFluorescence intensityO2-evolving complexPrimary electron donorReversible oxidationChlorophyll cationElectron donationFurther oxidationChlZRapid photooxidationDifferent sample preparation
1988
Electron Donation in Photosystem II
Thompson L, Miller A, De Paula J, Brudvig G. Electron Donation in Photosystem II. Israel Journal Of Chemistry 1988, 28: 121-128. DOI: 10.1002/ijch.198800021.Peer-Reviewed Original ResearchElectron transfer pathwayElectron paramagnetic resonanceElectron donationTransfer pathwayElectron donorOxygen-evolving centerPS IIOptical spectroscopyPhotosystem IITime-resolved optical spectroscopyPrimary electron donorAlternate electron donorsParamagnetic resonanceEPR resultsCytochrome b 559EPR studiesCyclic electron transfer pathwaysMn sitesSpectroscopyPhotooxidationKinetic componentsPhotooxidation of chlorophyllDonorsKinetics