Peptide sequence: KINKIIMEAT KGSRFYGNEL KKEKQVNQRI ENMMQQKAQI TSQQLRKAQL Sequence homology: Cow: 86%; Dog: 100%; Guinea Pig: 86%; Horse: 100%; Human: 100%; Mouse: 100%; Pig: 100%; Rat: 100%. External and internal DNA-damaging agents continually threaten