Immunogen sequence: QEKPNTTVQV PAFLQELVDR DNSKFEEWCI EMAEMRKQSV DKGKAKHEEV KELYQRLPAG AEPYEFVSLE WLQKWLDEST PTKPIDNHAC LCSHDKLHPD KISIMKRISE YAADIFYSRY GGGPRLTVKA LCKECVV Highest antigen sequence identity to the following orthologs: Mouse - 95%, Rat - 94