title: Primary process in the direct action of ionizing radiation on proteins: electron paramagnetic resonance of a glycylglycine single crystal gamma-irradiated at 77 degrees K.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D004578:Electron Spin Resonance Spectroscopy; D005609:Free Radicals / Q000378:metabolism; D010455:Peptides / Q000528:radiation effects*; D011506:Proteins / Q000528:radiation effects*; D011830:Radiation Effects
chemical_list: D005609:Free Radicals; D010455:Peptides; D011506:Proteins