title: Range of radiochemical damage to DNA with decay of iodine-125.
abstract: Studies of the length of DNA fragments produced upon decay of iodine-125-labeled deoxycytidine that was located at a single position within a DNA fragment of defined sequence demonstrate that most radiochemical damage occurs within 15 to 20 angstroms of the site of iodine-125 decay. However, DNA strand breakage was detectable up to 70 angstroms from the site of iodine-125 decay.
mesh_terms: D001483:Base Sequence; D004247:DNA / Q000528:radiation effects*; D006868:Hydrolysis; D007457:Iodine Radioisotopes
chemical_list: D007457:Iodine Radioisotopes; D004247:DNA