title: [Optical spectroscopy of methemoglobin from the Lampetra fluviatilis river lamprey and its complexes reduced at 77K].
abstract: The absorption spectra from met-haemoglobin from lamprey Lampetra fluviatilis and its complexes with F-, CN-, N3- and imidazole were studied in non-equilibrium states arising in low-temperature (77K) reduction of water-glycerol of oxidized forms of protein with thermolyzed electrons. The Soret band was shown to be not split in low-temperature absorption spectra of reduced met-haemoglobin and its complexes unlike that of the equilibrium deoxyhaemoglobin. It was concluded that met-haemoglobin has a higher symmetry of the active centre as compared to deoxyhaemoglobin.
authors.forename: R I
authors.initials: RI
authors.lastname: Artiukh
authors.forename: R M
authors.initials: RM
authors.lastname: Davydov
mesh_terms: D000818:Animals; D003486:Cyanides; D005399:Fishes / Q000097:blood*; D005459:Fluorides; D007093:Imidazoles; D007798:Lampreys / Q000097:blood*; D008024:Ligands; D008706:Methemoglobin / Q000032:analysis*; D009584:Nitrogen; D010084:Oxidation-Reduction; D013057:Spectrum Analysis; D013696:Temperature
chemical_list: D003486:Cyanides; D007093:Imidazoles; D008024:Ligands; D008706:Methemoglobin; D009584:Nitrogen; D005459:Fluorides
vernacular_title: Opticheskaia spektroskopiia vosstanovlennykh pri 77K metgemoglobina iz rechnoĭ minogi Lampetra fluviatilis i ego kompleksov.