2024
Cryo-EM structure of a photosystem I variant containing an unusual plastoquinone derivative in its electron transfer chain
Gisriel C, Kurashov V, Iwig D, Russell B, Vinyard D, Brudvig G, Golbeck J, Lakshmi K. Cryo-EM structure of a photosystem I variant containing an unusual plastoquinone derivative in its electron transfer chain. Science Advances 2024, 10: eadp4937. PMID: 39612342, PMCID: PMC11606441, DOI: 10.1126/sciadv.adp4937.Peer-Reviewed Original ResearchConceptsCryo-EM structureChemical bond energyElectron transfer chainBond energyPCC 6803Fuel catalystPhotosystem IBinding environmentTransfer chainLow binding affinityI variantsPlastoquinone derivativesBinding affinityCatalystPlastoquinone-9PS ICyanobacteriumBiophysical dataPhotosystemEnergyPhotonsVariantsAffinityMutation-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
1968
Reaction between primary and secondary electron acceptors of Photosystem II of photosynthesis
Forbush B, Kok B. Reaction between primary and secondary electron acceptors of Photosystem II of photosynthesis. Biochimica Et Biophysica Acta 1968, 162: 243-253. PMID: 5682854, DOI: 10.1016/0005-2728(68)90106-0.Peer-Reviewed Original ResearchConceptsElectron acceptorTrapping centersRate constant k1Secondary electron acceptorBimolecular reactionsIntermediate QEnergy transferRoom temperatureConstant K1ReactionAcceptorPhotosynthetic unitsPhotosystem II of photosynthesisReduced 2,6-dichlorophenolindophenolChloroplast capacityPhotosystem IIPhotoreductionPhotosystemOxidationQ-Concentrations of ARoom
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