Any Process That Results in a Change in State or Activity of a Cell (in Terms of Movement Secretion Enzyme Production Gene Expression Etc.) As a Result of a Stimulus Indicating Damage to Its DNA From Environmental Insults or Errors During Metabolism.
Interacting Selectively and Non Covalently with a Nucleotide Any Compound Consisting of a Nucleoside That Is Esterified with (ortho)phosphate or an Oligophosphate At Any Hydroxyl Group On the Ribose or Deoxyribose.
Interacting Selectively and Non Covalently with a Transition Metal Ions; a Transition Metal Is an Element Whose Atom Has an Incomplete D Subshell of Extranuclear Electrons or Which Gives Rise to a Cation or Cations with an Incomplete D Subshell. Transition Metals Often Have More Than One Valency State. Biologically Relevant Transition Metals Include Vanadium Manganese Iron Copper Cobalt Nickel Molybdenum and Silver.