title: [Phototransformation of radicals appearing in the result of peptide decarboxylation].
abstract: Photoreactions of peptides Ala-Gly-Gly and Gly-Gly-Gly-Gly in the presence of potassium ferricyanide at 77 K were studied by modeling of ESR spectra. There were obtained parameters of ESR spectra of primary radicals of the peptide glycine residue appearing after decarboxylation, and of the secondary acyl radicals. Dependence of the second integrals of the experimental and triplet and singlet ESR spectra on irradiation time within wave lengths 410-510, 330-390 and greater than 530 nm was measured and discussed.
authors.forename: A P
authors.initials: AP
authors.lastname: Kostikov
authors.forename: S V
authors.initials: SV
authors.lastname: Voloshchenko
authors.forename: V P
authors.initials: VP
authors.lastname: Ovcharenko
authors.forename: N S
authors.initials: NS
authors.lastname: Pugacheva
mesh_terms: D000595:Amino Acid Sequence; D003653:Decarboxylation; D004578:Electron Spin Resonance Spectroscopy; D005609:Free Radicals; D008027:Light; D008969:Molecular Sequence Data; D010455:Peptides / Q000737:chemistry* / Q000528:radiation effects; D010777:Photochemistry
chemical_list: D005609:Free Radicals; D010455:Peptides
vernacular_title: Fotoprevrashchenie radikalov, voznikaiushchikh pri dekarboksilirovanii peptidov.