Spectrum Analysis, RamanFluorescenceSpectrometry, FluorescenceMicroscopy, FluorescenceSpectrum AnalysisLasersHemeFluorescence PolarizationHafniumProtein ConformationVibrationHemeproteinsIn Situ Hybridization, FluorescenceMyoglobinCarbon MonoxideFluorescent DyesSpectrophotometrySpectrophotometry, UltravioletMicrospectrophotometrySchiff BasesCircular DichroismPhotochemistryFluorescence Resonance Energy TransferScattering, RadiationWhalesPhycobilinsHydrogen-Ion ConcentrationPorphyrinsSpectroscopy, Fourier Transform InfraredMolecular ConformationTemperatureBiophysicsCarotenoidsMolecular StructureBiophysical PhenomenaModels, MolecularKineticsHemoglobin AModels, ChemicalBinding SitesOxidation-ReductionElectron Spin Resonance SpectroscopyCarboxyhemoglobinProtein BindingPolydeoxyribonucleotidesCattleFerrous CompoundsMagnetic Resonance SpectroscopySolutionsQuantum TheoryThermodynamicsHydrogen BondingHemoglobinsFreezingDithionitePhotolysisHorseradish PeroxidaseWaterLightIronMicroscopy, Fluorescence, MultiphotonTryptophanDNAFluorescence Recovery After PhotobleachingOxygenHistidineLigandsSpectrophotometry, InfraredPrincipal Component AnalysisNucleic Acid ConformationChemistryChemical PhenomenaStructure-Activity RelationshipProtein Structure, SecondaryProtonsEnergy TransferCopperAlgorithmsElectron Transport Complex IVReproducibility of ResultsRhodaminesBacterial ProteinsCrystallizationPhotonsGreen Fluorescent ProteinsMicroscopy, ConfocalLuminescent ProteinsMicroscopyMetal NanoparticlesMolecular Sequence DataPhotobleachingSilverOptical ImagingFluoresceinsCarbocyaninesFluorometryAmino Acid SequenceChlorophyllTime FactorsAnilino Naphthalenesulfonates