PlastocyaninPhotosynthetic Reaction Center Complex ProteinsPyruvate SynthaseRhodobacter sphaeroidesRhodopseudomonasElectron TransportPheophytinsFerredoxinsBacteriochlorophyllsPhotosynthesisLight-Harvesting Protein ComplexesLightKetone OxidoreductasesCytochromes c2ChlorobiQuinonesTungstenCytochromes fOxidation-ReductionPhotosystem I Protein ComplexElectronsChlorophyllRhodobacterElectron Spin Resonance SpectroscopyPhotosystem II Protein ComplexFerredoxin-NADP ReductaseBiliverdineBile PigmentsSpectrophotometryPhycobilinsProteobacteriaCyanobacteriaAcidiphiliumIron-Sulfur ProteinsPhotochemistryBacterial ProteinsHyphomicrobiaceaeKineticsMolecular Sequence DataSpectrum AnalysisUbiquinoneAmino Acid SequenceBacterial ChromatophoresCytochromesChlorobiumTritrichomonasCytochrome c GroupEuglenaModels, MolecularNonheme Iron ProteinsProtein ConformationRhodospirillaceaeRhodobacter capsulatusDiuronProtonsOxidoreductasesAldehyde OxidoreductasesSpinacia oleraceaBacteriochlorophyll AElectrochemistryViologensChromatiumChromatiaceaeStatic ElectricityThermodynamicsChloroplastsRhodovulumArchaeaSulfolobusPyruvic AcidEnergy TransferModels, ChemicalPlantsCoenzyme ACytochromes c6PhycocyaninThiamine PyrophosphateSequence Homology, Amino AcidTetrapyrrolesTrichomonas vaginalisPyrococcus furiosusBenzoquinonesHydrogenasePlant ProteinsMethanosarcina barkeriBinding SitesCrystallography, X-RayAnaerobiosisHydrogen-Ion ConcentrationHemeMutagenesis, Site-DirectedClostridiumHydrogenNAD(P)H Dehydrogenase (Quinone)Giardia lambliaBacteriaQuinone ReductasesHydrogen BondingThylakoidsTemperature