Immunogen sequence: DLQKSEELIK KEMITMLHYD LLHHPYEPSG NKKGKTVGFG TNNSEHITYL EHNPYEKFSK EELKKAQDVL VQEMEVVKQG MSHGELSSEA YNQVWEECYS QVLYLPGQSR YTRANLASKK DRIESLEKRL EINRGHM Highest antigen sequence identity to the following orthologs: Mouse - 96%, Rat - 96