2004
Redox Functions of Carotenoids in Photosynthesis †
Frank HA, Brudvig GW. Redox Functions of Carotenoids in Photosynthesis †. Biochemistry 2004, 43: 8607-8615. PMID: 15236568, DOI: 10.1021/bi0492096.Peer-Reviewed Original ResearchConceptsBacterial light-harvesting complexesLight-harvesting complexCarotenoid cation radicalsPhotosystem IICation radicalsCation radical formationLight-harvesting pigmentsChlorophyll triplet statesPhotosynthetic reaction centersWater oxidationMolecular wiresRedox centersRedox reactionsElectron transferPhotosynthetic apparatusMeans of photoprotectionRedox roleBacterial photosynthesisRedox functionCarotenoid moleculesTriplet stateReaction centersRadical formationNovel mechanismPhysiological significance
2001
Photosynthetic Water Oxidation in Cytochromeb 559 Mutants Containing a Disrupted Heme-binding Pocket*
Morais F, Kühn K, Stewart D, Barber J, Brudvig G, Nixon P. Photosynthetic Water Oxidation in Cytochromeb 559 Mutants Containing a Disrupted Heme-binding Pocket*. Journal Of Biological Chemistry 2001, 276: 31986-31993. PMID: 11390403, DOI: 10.1074/jbc.m103935200.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBase SequenceCarrier ProteinsChlamydomonas reinhardtiiCytochrome b GroupDNA PrimersElectron Spin Resonance SpectroscopyHeme-Binding ProteinsHemeproteinsMutagenesis, Site-DirectedMutationOxidation-ReductionPhotosynthesisPhotosynthetic Reaction Center Complex ProteinsPhotosystem II Protein ComplexWaterConceptsPhotosynthetic oxygen evolutionMethionine mutantsWild typeAlpha subunitLight-saturated ratePhotosystem two complexWild-type levelsHeme of cytochromePhotosynthetic water oxidationHeme-binding pocketOxygen evolutionChloroplast mutantsPSII supercomplexesHistidine axial ligandsChlamydomonas reinhardtiiGlutamine mutantTyrosine mutantsMutantsType levelsRedox roleHemeSubunitsOxygen evolution activityTyrosineComplexesCarotenoid Photooxidation in Photosystem II
Tracewell C, Vrettos J, Bautista J, Frank H, Brudvig G. Carotenoid Photooxidation in Photosystem II. Archives Of Biochemistry And Biophysics 2001, 385: 61-69. PMID: 11361027, DOI: 10.1006/abbi.2000.2150.Peer-Reviewed Original ResearchConceptsPhotosystem IIElectron transfer reactionsPhotosynthetic reaction centersWater oxidationLight-harvesting pigmentsCarotenoid cationOxidizing intermediatesElectron transferRedox roleBacterial photosynthesisReaction centersPhysical methodsCationsPhotooxidationCarotenoid compositionRedoxOxidationIntermediatesAlternate pathwayCarotenoidsMinireviewReactionPhotoprotectionPossible rolePigments