Immunogen sequence: GRAQSVRTLA RNGSTVKMET VVGVQSQTLA INEAEIKTKP QVEIGAETGA RSGPRAEVET KATAIAIHRA NSQAKAMVGA EPETQSESKV VAGTLVMTEA VTLTEVKAKA REVAMKEAVT QTDAEAGKIV KKEAVTQTKA Highest antigen sequence identity to the following orthologs: Mouse - 55%, Rat -