HemeHemeproteinsHemopexinHeme Oxygenase (Decyclizing)Heme Oxygenase-1ProtoporphyrinsProtein BindingBacterial ProteinsSpectrophotometryMolecular Sequence DataBinding SitesAmino Acid SequenceHistidineIronProtein Structure, TertiaryEscherichia coliMutagenesis, Site-DirectedMutationCarbon MonoxidePorphyrinsMyoglobinOxidation-ReductionKineticsBase SequenceSpectrum Analysis, RamanFerrochelataseMetalloporphyrinsHeptanoatesProtein ConformationCytochrome c GroupLigandsElectron Spin Resonance SpectroscopyHemoglobinsRecombinant ProteinsCytochrome b GroupAminolevulinic AcidCytochromesWhalesCell LineDNA-Binding ProteinsCrystallography, X-RaySequence Homology, Amino AcidElectron Transport Complex IVCarrier ProteinsMembrane ProteinsApoproteinsTranscription Factors