title: [Supernarrow EPR spectrum of aqueous protein solutions, UV-irradiated at 77 K].
abstract: The nature was studied of paramagnetic centres photoinduced in aqueous solutions of proteins, amino acids and peptides at 77 K, having a supernarrow ESR spectrum with the width 8 mkTl and g = 1.9988 +/- 0.0002. It has been shown that seized electrons localized in deep traps are responsible for this signal. It is suggested that these are metal ions whose nucleus magnetic moment equals zero.
authors.forename: A P
authors.initials: AP
authors.lastname: Kostikov
authors.forename: V P
authors.initials: VP
authors.lastname: Ovcharenko
authors.forename: K M
authors.initials: KM
authors.lastname: L'vov
mesh_terms: D000418:Albumins / Q000528:radiation effects; D000596:Amino Acids / Q000528:radiation effects; D004578:Electron Spin Resonance Spectroscopy; D010455:Peptides / Q000528:radiation effects; D011506:Proteins / Q000528:radiation effects*; D013696:Temperature; D014466:Ultraviolet Rays
chemical_list: D000418:Albumins; D000596:Amino Acids; D010455:Peptides; D011506:Proteins
vernacular_title: Sverkhuzkiĭ spektr EPR vodnykh rastvorov belkov, UF-obluchennykh pri 77 K.