Immunogen sequence: TCELPLAKSE WQKKLTPEQF YVTREKGTEP PFSGIYLNNK EAGMYHCVCC DSPLFSSEKK YCSGTGWPSF SEAHGTSGSD ESHTGILRRL DTSLGSARTE VVCKQCEAHL GHVFPDGPGP NGQRFCINSV Highest antigen sequence identity to the following orthologs: Mouse - 85%, Rat - 87%. MSRB2