Peptide sequence: IPRAKKGAEG KPPGHSSHVL CMAISSDGKY LASGDRSKLI LIWEAQSCQH Sequence homology: Cow: 79%; Dog: 79%; Guinea Pig: 79%; Horse: 93%; Human: 100%; Mouse: 79%; Pig: 93%; Rabbit: 93%; Rat: 86%. The Ku autoantigen is a heterodimer of 70kDa (p70) and