Immunogen sequence: PTGMSFTNIY STLSGQGRLY DYGQRFVLGM GSSSIELCER EFQRGSLSDS SSFLDTQCDS SVSSSGKQDG YVQFDKASKA SASSSHHSQS SSQNSDPSR Highest antigen sequence identity to the following orthologs: Mouse - 100%, Rat - 100%. The protein encoded by this gene is a