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
1988
Cytochrome b-559 may function to protect photosystem II from photoinhibition.
Thompson L, Brudvig G. Cytochrome b-559 may function to protect photosystem II from photoinhibition. Biochemistry 1988, 27: 6653-8. PMID: 3058202, DOI: 10.1021/bi00418a002.Peer-Reviewed Original ResearchConceptsPhotosystem II complexPhotooxidation of chlorophyllCyclic electron transferCytochrome bPhotosynthetic reaction center complex