Immunogen sequence: QPVHVSVSSG YGSLGSSGSQ EQLVSIASSS EASGHRVEET KAEQMTLQQV YASVNKIKNL GQQLYIESMT KSSFKPVTGT RTEPNGGGES ANGGGECKTF TSFHQTLKNN SVYTEPCEDL RNDEHSPSYQ QIN Highest antigen sequence identity to the following orthologs: Mouse - 64%, Rat - 66%. T