1996
Reversible Binding of Nitric Oxide to Tyrosyl Radicals in Photosystem II. Nitric Oxide Quenches Formation of the S3 EPR Signal Species in Acetate-Inhibited Photosystem II†
Szalai V, Brudvig G. Reversible Binding of Nitric Oxide to Tyrosyl Radicals in Photosystem II. Nitric Oxide Quenches Formation of the S3 EPR Signal Species in Acetate-Inhibited Photosystem II†. Biochemistry 1996, 35: 15080-15087. PMID: 8942675, DOI: 10.1021/bi961117w.Peer-Reviewed Original ResearchConceptsS3 EPR signalOxygen-evolving complexMultiline EPR signalEPR signalS2 statePhotosystem IIManganese-depleted photosystem IIS2-state multiline EPR signalRedox-active tyrosinesPhotosystem II samplesRadical EPR signalSignal speciesNitric oxide (NO) bindsTyrosyl radicalsAmmonia resultsReversible bindingOxideYZDipolar interactionsRibonucleotide reductase
1986
Effect of the 17- and 23-kilodalton polypeptides, calcium, and chloride on electron transfer in photosystem II.
De Paula J, Li P, Miller A, Wu B, Brudvig G. Effect of the 17- and 23-kilodalton polypeptides, calcium, and chloride on electron transfer in photosystem II. Biochemistry 1986, 25: 6487-94. PMID: 3024710, DOI: 10.1021/bi00369a022.Peer-Reviewed Original ResearchConceptsS2-state multiline EPR signalMultiline EPR signalEPR signalPSII membranesPhotosystem II samplesS1 stateUntreated PSII membranesReaction centersElectron paramagnetic resonance measurementsChlorophyll moleculesPhotosystem II membranesStable charge separationParamagnetic resonance measurementsPhotosystem IIPSII samplesO2-evolving centerElectron transferCharge separationElectron donorNuclear hyperfine structureCytochrome b559Mn sitesResonance measurementsOxidationFraction of PSII