Immunogen sequence: MAEEQVNRSA GLAPDCEASA TAETTVSSVG TCEAAAKSPE PKDYDSTCVF CRIAGRQDPG TELLHCENED LICFKDIKPA ATHHYLVVP Highest antigen sequence identity to the following orthologs: Mouse - 47%, Rat - 58%. Histidine triad proteins, such as HINT3, are nucle