2024
Mutation-induced shift of the photosystem II active site reveals insight into conserved water channels
Flesher D, Liu J, Wang J, Gisriel C, Yang K, Batista V, Debus R, Brudvig G. Mutation-induced shift of the photosystem II active site reveals insight into conserved water channels. Journal Of Biological Chemistry 2024, 300: 107475. PMID: 38879008, PMCID: PMC11294709, DOI: 10.1016/j.jbc.2024.107475.Peer-Reviewed Original ResearchOxygen-evolving complexPhotosystem II active sitePhotosystem IIJahn-Teller distortionPhotosystem II complexD1-Asp170Jahn-TellerResolution cryo-EM structureMutation-induced structural changesCryo-EM structureMagnetic propertiesD1 subunitActive siteOxygenic photosynthesisMutagenesis studiesLight-driven water oxidationSpectroscopic propertiesStructural basisSpectroscopic dataAmino acidsWater oxidation mechanismPhotosystemMutationsMutation-induced shiftWater oxidation
2022
Structure of a dimeric photosystem II complex from a cyanobacterium acclimated to far-red light
Gisriel C, Shen G, Flesher D, Kurashov V, Golbeck J, Brudvig G, Amin M, Bryant D. Structure of a dimeric photosystem II complex from a cyanobacterium acclimated to far-red light. Journal Of Biological Chemistry 2022, 299: 102815. PMID: 36549647, PMCID: PMC9843442, DOI: 10.1016/j.jbc.2022.102815.Peer-Reviewed Original ResearchConceptsFar-red light photoacclimationChl dFar-red lightPhotosystem IIChl fWater-splitting enzymeEnergy transferDimeric photosystem II complexesCryo-EM structurePhotosystem II complexElectron transfer chainWater oxidationChl f moleculesDimeric complexStructure-function relationshipsPhotosynthetic machineryPsbH subunitProtein environmentMonomeric structureOxygenic photosynthesisVisible lightFormyl moietyF moleculesAccessory pigmentsTransfer chain
2013
3.15 Complex Systems: Photosynthesis
Pokhrel R, Brudvig G. 3.15 Complex Systems: Photosynthesis. 2013, 385-422. DOI: 10.1016/b978-0-08-097774-4.00313-2.Peer-Reviewed Original ResearchOxygen-evolving complexQuantum mechanics/molecular mechanicsPhotosystem IIOO bond formationDensity functional theory calculationsComplete catalytic cycleFunctional theory calculationsProton exit pathwayIron-sulfur centersMetal centerNatural photosynthesisModel complexesCatalytic cycleBond formationMolecular mechanicsFunctional mimicsElectronic characterizationTheory calculationsRole of chlorideOxygenic photosynthesisComplexesDetailed mechanismExit pathwayHydrogenasesPlastocyanin
2011
Photosynthesis: Energy Conversion
Ulas G, Brudvig G. Photosynthesis: Energy Conversion. 2011 DOI: 10.1002/9781119951438.eibc0455.Peer-Reviewed Original ResearchSolar fuel productionSustainable solar fuel productionWater oxidation catalysisWater oxidation catalystsLight-driven oxidationNatural photosynthetic systemsHigh-energy chemicalsEnergy conversionCarbon dioxide reductionSolar energy conversionFuel productionArtificial photosynthesisWater oxidationRedox levelingHalf reactionOxygenic photosynthesisElectron transferCatalytic turnoverCatalytic mechanismChemical energyDirect light absorptionElectron transport machineryLight absorptionPhotosynthetic systemsLight energy capture
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 ionsPhotosynthesis: Energy Conversion
Ulas G, Brudvig G. Photosynthesis: Energy Conversion. 2005 DOI: 10.1002/0470862106.ia805.Peer-Reviewed Original ResearchSolar fuel productionSustainable solar fuel productionWater oxidation catalysisWater oxidation catalystsLight-driven oxidationNatural photosynthetic systemsHigh-energy chemicalsEnergy conversionCarbon dioxide reductionSolar energy conversionFuel productionArtificial photosynthesisWater oxidationRedox levelingHalf reactionOxygenic photosynthesisElectron transferCatalytic turnoverCatalytic mechanismChemical energyDirect light absorptionElectron transport machineryLight absorptionPhotosynthetic systemsLight energy capture